Pertussis

Verruca vulgaris is a benign skin tumor caused by human papilloma virus infection. In the medicine of the motherland, it is called ldquo; verrucous rdquo ;, ldquo; schizophrenia rdquo ;, ldquo; dry muscle arrow rdquo ;, commonly known as ldquo; thorn rdquo ;, ldquo; cricket rdquo; Occurs in adolescents, more common in fingers, back of hands, feet. Damage to the skin and mucous membranes is the main cause of infection. The initial manifestation is a hard, small papules, which are grayish yellow or tan, and the surface is rough and keratinized. The disease develops slowly and can resolve naturally. Local medication and surgery can also be used.