What disease is it when transparent bubbles appear on hands and feet and how to treat it?

Patient's question:

Rash on the head and face, all over the body, some with transparent blisters, no fever, about 3 days. Transparent blisters on hands and feet. Past treatment and effectiveness: Antiviral oral liquid. What kind of help do you want: What disease is it and how to treat it

Doctor's answer:

According to your description, it is likely urticaria, caused by allergies. It is recommended to take oral antihistamines such as Chlorpheniramine, and use topical corticosteroid creams like Eczemo. (Corticosteroids should not be used for long periods). It is advised to avoid external irritants and local irritation in daily life, do not scratch, do not rub vigorously, and do not use hot water or soapy water to wash. Avoid alcohol, strong tea, and coffee. Do not eat acidic, spicy dishes, or other irritating foods. During relapse, avoid foods that are prone to cause allergies, such as yellow croaker, sea shrimp, and seafood.