The recovery time of skin allergy varies depending on various factors such as the individual’s body type and condition, and cannot be generalized. Skin allergy refers to itching, redness, swelling, oozing and peeling of skin and mucous membranes caused by a variety of internal and external factors. Mild skin allergy can be relieved in a few days with timely and regular treatment if the cause or triggering factors are removed. If the cause of the allergy is unclear, recurrent and untreated, combined with scratching, scalding and other stimuli, skin thickening and mossiness may occur. The recovery time may take weeks, months or even last for years and be prolonged. Therefore, after the appearance of skin allergies, you should promptly consult a dermatologist, and under the doctor’s consultation, take oral or topical anti-allergy and anti-itch medications according to your condition. At the same time, try to find the allergen, if there is a clear allergen, should avoid or reduce re-exposure. In normal daily life, pay attention to reasonable protection and try to avoid all kinds of internal and external stimuli.