Bedbug bites can cause papular urticaria, commonly known as insect bite dermatitis, should be treated according to the patient’s serious situation: 1, if the bite is no other systemic symptoms, simple skin redness and swelling accompanied by itching, the situation is not very serious, can be temporarily observed, the local bite available ice or cold towel wet compresses, temporarily do not need to use drugs; 2, if after the above simple treatment, the redness and swelling does not subside If after the above simple treatment, the redness and swelling does not subside and the area increases, as well as the itching is more serious than the original situation, it is recommended to go to the hospital dermatology department for specialist consultation in a timely manner, you can follow the doctor’s instructions to use topical anti-inflammatory anti-itch detoxification ointment or ointment, such as butyl hydroxy acid ointment, heavy floor detoxification tincture, etc.. If the itching is intense can be combined with oral anti-allergy drugs, such as loratadine tablets, cetirizine tablets, etc.; 3, if the bite skin blisters, you can extract the bubble fluid, local use of zinc oxide cream topical application, you can also take oral glucocorticoids to control the development of local inflammation, generally oral prednisone or dexamethasone, etc.; 4, if the bedbugs and other bites, after the emergence of panic, chest tightness, uncomfortable, breathing difficulties, etc. 4, if the bedbugs and other bites after the emergence of panic, chest tightness, uncomfortable, breathing difficulties, etc., considered an acute allergic reaction, you should look for professional hospital emergency treatment, often intramuscular injection of dexamethasone and epinephrine and other drugs to relieve.