Skin allergies after vaccination can be regulated by general treatment, local medication, systemic medication and other measures. 1. General treatment: keep the skin clean and hygienic, rinse with water, avoid hot water, avoid scratching, avoid mental stress, drink more water to promote metabolism, quit smoking and alcohol, avoid eating chili peppers, seafood and other products. 2. Topical medications: commonly used medications include glycerin lotion, hydrocortisone ointment, compound dexamethasone ointment, and Hasinide cream. 3. Systemic medication: generally oral cetirizine, loratadine and other antihistamines to improve allergy symptoms; severe cases can also be oral prednisone tablets, dexamethasone tablets and other glucocorticoid drugs. After vaccination skin allergies, if the symptoms are serious, but also should be actively rescue, it is recommended to go to the hospital as soon as possible to check, follow the doctor’s instructions for treatment.