Afraid of pain, I went to a treasure to buy a Yang's foot Jining, wrapped it with medical tape, soaked it every day, took it apart after soaking for 4 days, peeled off the skin (it was easy to tear), then applied the medicine twice without wrapping it, and wrapped it again the next day, and it would be fine soon. Mainly painless! !
It's all hands+personal experience, hehe, I can guarantee it's effective.