1. Disruption of gut flora leading to diarrhea
The human digestive system contains more than 100 trillion microorganisms, including around 500 different species, with beneficial bacteria (85%) and harmful bacteria (15%). Despite the presence of harmful bacteria, the body maintains good health due to the balance between these two groups. Disruption of gut flora occurs when this balance is disturbed, often caused by antibiotics. Antibiotics can kill both harmful bacteria and beneficial bacteria, which disrupts the gut's microbiome, making way for harmful bacteria to thrive or new pathogens to invade, leading to diarrhea or intestinal inflammation.
When gut flora is disrupted, common symptoms include diarrhea, loose stools, sometimes with mucus or a small amount of blood, occasional bloating, and mild fever. The severity and duration of diarrhea depend on the type of antibiotic used, the duration of use, and the body's sensitivity to that specific antibiotic. This condition can affect individuals of all ages, but children are particularly susceptible. If left untreated in children, it can lead to dehydration, electrolyte imbalances, malnutrition, and long-term health issues. In some cases, antibiotics may cause constipation due to internal heat buildup.


2. Suffering from medication side effects
Improper and prolonged use of antibiotics can lead to serious health issues such as liver, kidney, and digestive problems. Some antibiotics, when overused, can cause hormonal imbalances, delay menstruation in women, and reduce sperm quality in men. Frequent use can also lead to antibiotic resistance, rendering the medicine ineffective. One of the most dangerous side effects of antibiotics is allergic reactions. In fact, antibiotic allergies are one of the most common reasons for emergency room visits. These reactions may include itching, hives, swelling of the lips, difficulty breathing, and in severe cases, anaphylactic shock, where the throat swells and requires immediate medical attention. While such reactions are rare, they are critical to watch out for, especially if you're prescribed a new antibiotic that you haven’t used before.
There have been numerous cases of allergic reactions not only to antibiotics but to other medications as well. While drugs are meant to treat illness, they can also cause unwanted side effects such as rashes, nausea, vomiting, or in severe cases, organ damage (liver or kidney), and even anaphylactic shock, which can be life-threatening. Therefore, when giving medicine to your child, it’s important to monitor them closely. The first time a new medication is used, observe your child for any signs of a reaction. If symptoms appear, stop the medication immediately and contact your doctor to find an alternative, while also noting the ingredients to avoid similar medications in the future.


3. Liver damage
Antibiotics have become one of the most commonly used medications today, with people reaching for them for anything from headaches to nasal congestion, or any localized inflammation. However, what's concerning is that many individuals take them for extended periods without any medical prescription. The old saying, “too much of anything is harmful,” holds true for antibiotics. Prolonged use in various cases can negatively affect health, especially the liver, which is responsible for many essential functions in the body. Among the organs affected by antibiotics, the liver is no exception.
Antibiotics are often referred to as the 'enemy' of the liver. Numerous studies have shown that antibiotics can harm liver tissue, causing liver function markers such as AST and ALT to rise significantly. While antibiotics are a quick solution for treating illnesses in children, what many don't realize is the long-term damage they may cause. The liver plays a crucial role in the body, and it's important not to unknowingly harm it. Whether it's antibiotics or any other medication, all substances processed by the body pass through the liver. Therefore, the liver is the most affected organ when antibiotics are overused. Certain antibiotics, like rifampicin, can cause severe liver toxicity if taken in high doses for extended periods. Symptoms of liver damage may include liver enlargement, jaundice, and pain in the liver area. With proper treatment adjustments and a balanced diet, rest can help the liver recover and function normally again.


4. Increased cancer risk
One of the hidden dangers of prolonged antibiotic overuse is the harm it causes to beneficial bacteria. Broad-spectrum antibiotics kill both harmful and helpful bacteria. If used improperly, the overuse of antibiotics can wipe out the beneficial bacteria in the gut, weakening the body’s immune defense. Autoimmune diseases occur when the immune system mistakenly attacks the body’s own tissues. Long-term antibiotic use can disrupt the immune system's balance, potentially triggering autoimmune disorders and making the body more susceptible to chronic illnesses or infections. Furthermore, certain types of long-term antibiotic use have been linked to an increased risk of cancer.
According to research by Finnish scientists, comparing long-term antibiotic users with cancer patients revealed disturbing findings. For example, long-term antibiotic use has been shown to significantly raise the risk of cancers such as prostate, breast, lung, colorectal, ovarian, endocrine, skin, thyroid, and kidney cancer—by as much as 1.5 times compared to those who do not use antibiotics, in both men and women. These findings are especially relevant for chronic patients who require extended antibiotic treatments, but they also serve as a warning for anyone considering long-term antibiotic use.


5. Increased risk of asthma
Asthma is a life-threatening condition if not managed and treated properly, especially when exposed to various triggers. The use of antibiotics, particularly in childhood, can increase the likelihood of developing asthma, allergic rhinitis, and eczema in school-aged children. For this reason, parents need to be cautious when giving antibiotics to their children to avoid long-term health impacts. Studies show that early antibiotic use, especially in young children, may heighten the risk of asthma, allergic rhinitis, and eczema. Therefore, parents should be extra careful when administering antibiotics, to protect their children’s health in the future.
The Global Strategy for Asthma Management and Prevention advises that for children under 5, “broad-spectrum antibiotics should not be used during the early years of life.” Broad-spectrum antibiotics target a wide range of bacteria, not all of which are harmful. Research suggests that exposure to beneficial microbes—such as those passed through the mother’s birth canal—may reduce the likelihood of asthma. By using broad-spectrum antibiotics, beneficial bacteria are also destroyed, which may increase the risk of asthma. Thus, when children are ill, it’s important for parents to seek a doctor’s advice before administering antibiotics, rather than buying them over the counter.


6. Leads to unnecessary expenses
Many viral infections do not require antibiotic treatment. Using antibiotics when unnecessary results in waste. Prescribing antibiotics for viral illnesses or using strong antibiotics without a proper indication leads to wasted resources, especially since strong antibiotics are often expensive. Additionally, self-medicating with antibiotics or using prescriptions meant for others can result in ineffective treatment (as the wrong medication is used) and cause complications, extending the illness and incurring even greater costs due to the need for more expensive treatments.
Instead of frequently purchasing antibiotics for your child, it is better to invest in nutritious food. For example, bird's nest is highly beneficial for health, particularly for young children, as it boosts immunity and provides essential vitamins and minerals for their development.


7. Impact on kidneys and hearing
Antibiotics are commonly used to treat bacterial infections but are often misused. Once in the body, antibiotics are excreted through the kidneys, and their misuse can lead to kidney damage. Antibiotics can harm the kidneys both directly and indirectly (when combined with other medications). They can cause nephrotoxicity, leading to damage to the renal tubules and cell membranes. In cases where the kidney tissue is particularly sensitive, certain antibiotics may damage the renal tubules and interstitial tissue. Antibiotics can even lead to acute kidney failure by reducing blood flow to the kidneys.
Additionally, research from Oregon Health and Science University has shown that using aminoglycoside antibiotics to treat bacterial infections may put patients at risk of hearing loss. Aminoglycosides are critical in treating conditions such as meningitis, septicemia, respiratory infections, and neonatal infections. However, these antibiotics can damage cells, particularly in the cochlea and auditory nerves, leading to hearing impairment, tinnitus, dizziness, and loss of balance. In severe cases, hearing loss can be permanent. Therefore, it is essential to follow the doctor's prescription to ensure the correct treatment for your child's condition, as this will maximize safety and efficacy.


8. Leads to antibiotic resistance
Antibiotic resistance happens when bacteria or other microbial pathogens become resistant to the effects of antibiotics. When resistance develops, these bacteria or viruses survive and continue to multiply, leading to more harm. Antibiotic resistance is a critical global issue, as it produces stronger, more dangerous bacteria, accelerating the spread of diseases, making treatments more difficult, and increasing healthcare costs. This is particularly dangerous for vulnerable populations such as the elderly, children, and those with weakened immune systems, raising the risk of severe complications, disability, and even death. To prevent antibiotic resistance in children, parents should take the following precautions: Use antibiotics only when necessary and strictly follow the doctor's instructions. Never buy antibiotics without a prescription or try to replicate a prescription. Antibiotics should only be used for bacterial infections—viral conditions like colds or flu do not require antibiotics. Always finish the prescribed course, even if the child feels better, as stopping early can lead to resistance.
Antibiotic-resistant bacteria place an enormous strain on healthcare systems. Treatments become harder, as even high doses or prolonged courses of antibiotics may not work. This requires using a combination of different antibiotics, which increases costs, wastes resources, and increases the risk of harmful side effects, particularly to the liver and kidneys. Furthermore, resistance can make some “superbugs” fatal. Resistance develops primarily due to misuse or overuse of antibiotics. Bacteria gradually evolve resistance, but improper use speeds up the process. To reduce this risk, it is crucial to follow medical guidelines and avoid unnecessary antibiotic prescriptions. Proper use of antibiotics will reduce treatment costs and help prevent the spread of resistance.


9. Causes loss of appetite in children
A child's immune system is closely tied to the intestinal lining and the beneficial bacteria in the gut. When this balance is disturbed by antibiotic misuse, it can cause immune system disruptions. Antibiotics are designed to kill harmful bacteria, but overusing broad-spectrum antibiotics or using them in high doses for long periods can wipe out both harmful and beneficial bacteria. For young children, whose gut microbiota is not yet fully developed, this imbalance can lead to issues like diarrhea, constipation, nausea, and rashes. These are common side effects of antibiotic use. The destruction of helpful gut bacteria makes digestion less efficient, which is the primary cause of diarrhea. To counteract this, it's recommended to give children vitamin supplements along with antibiotics to support their gut health.
Furthermore, when children take antibiotics, they lose the beneficial bacteria that help with digestion, leading to poor appetite. Long-term poor appetite can result in malnutrition, stunted growth, and bone development issues. Therefore, when antibiotics are necessary, as prescribed by a doctor, it's important to also give children digestive enzymes, probiotics, or foods like yogurt to help restore healthy gut bacteria.


10. Prone to frequent illnesses
Frequent illnesses may stem from an underdeveloped immune system in children. Additionally, changing weather patterns make children more susceptible to illnesses, as their resilience is lower, causing them to experience frequent fevers, coughs, and colds. Another factor is the underdevelopment of their gut microbiota and digestive enzymes, which can cause digestive issues. Moreover, some children have weakened immune systems and struggle to fight off infections.
When taking antibiotics, all bacteria—both harmful and beneficial—are eradicated, leaving the child with no immunity. As a result, when exposed to harmful bacteria, the child is more likely to fall ill. After each round of antibiotic treatment, it's crucial for parents to ensure that children receive proper nutrition and additional supplements to help them regain their strength and boost their immune system. Children who take antibiotics frequently are more likely to develop respiratory infections. This happens because their immune systems remain weak, with little chance to mature due to the overuse of antibiotics. When treated appropriately, children can overcome illnesses while also giving their immune system a chance to “train” and fight off future infections.


