The redness and itchiness of the band-aid for too long is mainly considered to have caused contact dermatitis, in addition to the seriousness of the case can also appear redness, swelling, oozing performance. In clinical treatment, the medication should be decided according to the severity of the disease. If it is serious and the rash area is extensive, it can be combined with the static spot of compound glycyrrhizic acid monoammonium S sodium chloride injection, while oral orotate tablets and external application of mometasone furoate ointment to apply foam. In case of vesicles and oozing, you can apply dermatological lotion 1:5 with water to the affected area, and you can also take a decoction of traditional Chinese medicine, such as honeysuckle, forsythia, zizyphus, dandelion, fresh amaranth, and cypress, and apply cold wet compresses to the affected area 2 times/day for 15 minutes/time, and avoid spicy and stimulating foods and alcohol during the treatment period.