Users of these five Devil Fruits can heal others due to their unique powers.
In the One Piece world, some individuals can heal wounds for others using their Devil Fruit abilities. Of course, each person's healing method varies.
Here are five examples of Devil Fruit abilities in One Piece that can heal others!
1. Chiyu Chiyu no Mi

The power from Princess Mansherry's Chiyu Chiyu no Mi, belonging to the Tontatta tribe, can heal anyone with the liquid from her body, such as tears.
This Devil Fruit can potentially extend our lifespan by healing wounds, although its ability to cure diseases remains unknown. Not only living creatures, but Princess Mansherry's power can also restore inanimate objects to their original state, even if they were damaged. However, if she heals inanimate objects, her lifespan will decrease.
2. Ope Ope no Mi

Known as the 'Ultimate Devil Fruit,' the Ope Ope no Mi is renowned for its unique abilities. This fruit not only has the power to cure all diseases but also possesses various formidable abilities such as soul swapping and creating a Room to manipulate everything within it.
For individuals with advanced medical knowledge, the power of the Ope Ope can even cure incurable diseases.
For example, Law can use the abilities of the Ope Ope no Mi along with his medical expertise to cure himself of the Amber Lead Syndrome that he suffers from.
3. Tori Tori no Mi, Model: Phoenix

The mythical Zoan-type Devil Fruit Tori Tori no Mi, Model: Phoenix, allows its consumer to transform into a blue fire phoenix. This special fire can heal any wound, akin to how a phoenix can regenerate from ashes.
For example, when Marco is injured in his human form, transforming into a Phoenix allows him to heal the wound with the blue fire from his Devil Fruit power.
Not only capable of self-healing, Marco's blue fire can also heal the wounds of others, although not as potent as when used on oneself.
4. Horu Horu no Mi

The Horu Horu no Mi is a Paramecia-type Devil Fruit, granting the user the ability to create and control hormones. It was consumed by Emporio Ivankov. Consequently, the consumer can manipulate various aspects of a person such as gender, body temperature, pigmentation, growth, and even emotional state.
Hormones can also be used to enhance a person's combat abilities through healing and boosting vitality. For example, Ivankov once injected a special hormone to stimulate the entire potential of the immune system into patients, thereby curing those afflicted with severe and toxic diseases.
However, this hormone essentially only unlocks the potential of the recipient's immune system. Therefore, the survival chance of the recipient depends on their will to live. Luffy managed to survive after being poisoned by Magellan's toxin thanks to this technique.
5. Nikyu Nikyu no Mi

Nikyu Nikyu no Mi, also known as the Paw-Paw Fruit, grants the consumer paw pads underneath their palms like those of a cat. It is currently consumed by Bartholomew Kuma. Thanks to it, Kuma has the power to 'push' anything, including the air around him.
The healing ability of the Nikyu Nikyu no Mi Devil Fruit is also quite unique. Essentially, Kuma can push pain and fatigue out of the victim's body.
However, in reality, the wounds of the victim are not truly healed, so they still need to be treated in a separate way. But this way, the victim can feel refreshed.