Blisters in medicine refers to blisters, Yunnan Baiyao allergy is mostly considered and contact dermatitis related, if for out of blisters of contact dermatitis patients, first of all should immediately stop the drug, and then take the general treatment, medication and other ways to improve. 1. General treatment: if contact dermatitis patients local blisters, first need to stop using drugs, avoid re-exposure. At the same time, you need to take good care of the skin, strengthen the skin cleaning, avoid scratching the local or make the blister rupture. 2. medication: patients with contact dermatitis with localized blisters can take antihistamines orally to help fight allergies, common drugs include chlorpheniramine, cetirizine and loratadine. For the skin blisters of patients with drug rash, can not be unauthorized blisters, the need to strengthen the skin care, it is recommended to go to the regular hospital, with the doctor standardized diagnosis and treatment.