Allergy to anthritis mainly refers to the application of anthritis to the skin causing redness and itching, and in severe cases, blisters or vesicles and oozing, clinically diagnosed as contact dermatitis. The clinical diagnosis is contact dermatitis. The allergy must be stopped with the topical application of windex, then oral antihistamines such as loratadine or cetirizine can be taken, and depending on the severity of the rash, oral glycopyrrolate tablets can also be used for anti-inflammatory treatment. Topical saline can be applied topically, soaking the saline with gauze and then applying it to the red spots. If the swelling subsides significantly, you can apply hormonal creams, such as Denide cream or Mometasone furoate cream.