Allergy to ointment paste belongs to contact dermatitis and is treated by the following methods: 1. Stop using the ointment: Rinse the skin surface with water. 2. Take oral anti-allergy medication: Second generation antihistamines, such as loratadine and cetirizine, are preferred for antipruritic and anti-allergic treatment. If the allergy is particularly severe and blisters and blisters appear, oral or intravenous hormone therapy is also required.3. Topical medications: If it is only erythema and papules, you can apply hormone creams externally and choose according to the location and age. If you are young or have thin skin at the onset, you can choose weak hormone creams, such as dinaide cream and hydrocortisone butyrate cream. In case of adults, who do not have thin skin areas, topical halometasone cream can be used. If the manifestation blisters, topical stove glycolic lotion can be used. For larger blisters, herpes fluid needs to be drawn and saline wet compresses used.