Itchy fingers after having nails done need to be considered due to allergic reaction, bacterial infection, fungal infection. 1. Allergic reaction: nail polish contains a large number of chemical substances, if the patient is allergic to the ingredients, it can cause finger itching, accompanied by erythema, pimples and other skin lesions. 2. Bacterial infection: breakage of the nail skin during the operation may cause bacterial infection, which may lead to finger itching. 3. Fungal infection: If the nail staff themselves have ringworm, it may cause cross-infection, so there will be itchy fingers after doing nails, and later can also be accompanied by scaling, peeling and other phenomena. Itchy fingers after doing nails for many reasons, it is recommended that patients go to the hospital in a timely manner to improve the examination, in accordance with the doctor’s instructions to take standardized treatment, do not ignore the symptoms, to take it lightly.