Itchy blisters on the soles of children’s feet may be related to contact dermatitis, tinea pedis and other diseases. 1. contact dermatitis: children’s soles of the feet in contact with certain exogenous allergens or irritants, causing the body to undergo an allergic or irritant reaction, may appear erythema, papules, blisters, etc., with itching. 2. Tinea pedis: associated with dermatophyte infection, can be transmitted through direct or indirect contact. After infection, deep blisters may appear on the soles of the feet, toe crevices, lateral edges of the metatarsals, etc., which are not easy to break and have obvious itching. Children with long blisters on the soles of the feet and itchy, can consult a doctor in time, clear diagnosis, follow the doctor’s instructions on the cause of symptomatic treatment.