I met a kind-hearted aunt who said that the wart on her wrist was blessed and asked God for an answer.

It's just melanin precipitation. As far as Chinese medicine is concerned, boils and acne on the skin are only pathological changes in the internal organs, and people have the ability to heal themselves. Minor ailments can repair themselves unconsciously, but even if they are cured, things like boils will not disappear, so don't be confused by the foreign minister ~