Cephalosporin allergy may have dizziness, nausea, erythema, dyspnea, blisters and other manifestations. Cephalosporin is the general name of cephalosporin antibacterial drugs, mild allergy may have dizziness, headache, nausea, vomiting, palpitations, panic, erythema, redness of the skin, itching and other manifestations, and in severe cases, it may be tightness of the chest, shortness of breath, dyspnea, laryngeal spasms, edema of the skin tissues, blisters, anaphylactic shock, necrolytic epidermal laxity and other manifestations. When allergic reaction occurs, patients should stop using the drug immediately and seek medical treatment promptly. For mild allergic reaction patients can follow the doctor’s instructions oral antihistamines, such as cetirizine hydrochloride capsules, loratadine capsules, etc., and in severe cases can be used under the guidance of the doctor dexamethasone acetate injection or isoprinosine hydrochloride injection treatment. During the treatment, pay attention to a light diet, avoid smoking and drinking, avoid eating spicy and stimulating food.