When allergy with itching occurs, quick treatment includes the following types: 1. intramuscular drugs, such as chlorpheniramine maleate injection to strengthen the anti-itch effect; 2. oral drugs, such as olopatadine hydrochloride tablets or lupatadine fumarate tablets to strengthen the anti-allergy and anti-itch efficacy, and also thalidomide tablets, or the first generation of antihistamine drugs, such as cyproheptadine hydrochloride tablets also have a good anti-itch effect; 3. topical Drugs, you can apply glucocorticoid drugs, such as Denide ointment or Halometasone ointment, you can also choose antihistamine topical drugs, such as Benadryl ointment or Doxepin ointment, you can also apply non-steroidal anti-allergy ointment, such as butyl flufenamic acid ointment or butyl hydroxy acid ointment for treatment.