If some people experience itching after ear piercing, it may be due to a certain inflammatory stimulation of the area. Depending on individual differences and the severity of the inflammation, some people may experience pain, while others may experience itching, which may be due to localized redness and swelling or may induce a certain pus. This may not be caused by infection, but by allergy and irritation of the skin around the ear hole, for example, if the area is bitten by mosquitoes or scratched by oneself, it may induce erythema and inflammatory papules, which may cause itching due to severe irritation.