Tell you the simplest and most practical way to remove it: use white flour (flour eaten at home) and add white vinegar. A place called vinegar essence in the northeast and white vinegar in the north is basically transparent. Find a small container (I use a coke bottle cap) and pour a little white flour into it, then add a few drops of white vinegar. Proportion is as simple as paste. Don't paste it in a boiling place too dry or too thin. It will dry in a short time, and there will be a little tingling or burning after drying. If possible, rub it three times a day, because it is easy to fall off when it is dry. If you rub it for a while, the boil will dehydrate and then fall off like dead skin. I was first infected by my brother about 10 years ago. Mine is the part between the lips and the nose, which is used on the left side of the person. I didn't expect 10 years later to be infected by friends and continue to use it on the instep. This method has good effect and low cost. I might as well try to experience it myself. I've also heard that garlic can be wiped off by cutting it into pieces, but I haven't experienced it personally, and I don't know how the effect is.