First, disinfect the red, swollen and painful area with 75% alcohol or wipe with ginger slices; if there is a wound, use a dilute potassium permanganate solution to wash the pus and blood and try to dry it, then spread the folded plaster and place it on a low fire It is soft on the top, sometimes due to the condition of the disease, evenly sprinkle some powder on the soft plaster, and then repeatedly fold, spread the plaster, so that the powder is mixed in, so that the effect can be faster and better.
If the affected area is itchy, massage on the outside of the plaster. If it does not work, remove the plaster, rub the itchy area with an alcohol cotton ball, and then heat the plaster on it. If there is pus in the affected area, you can add some gauze on the surface of the plaster, or cut a small hole in the plaster paper, so that the hole and the wound can be applied correspondingly to drain the pus. For those who have been eroded, painful, or have blisters, they can be treated with a plaster, or the plaster can be peeled off, disinfected with alcohol, then red syrup, and bandaged with gauze.