Skin symptoms after cockroach bites are usually manifested as localized pimples, itching, redness and swelling. After cockroach bites the skin, there is a possibility that the allergy may lead to the pimples like the windbreaks, usually in the early stage of the pimples are relatively small, slightly reddish, and then may form a large area of pimples, accompanied by the symptoms of itching. If secondary bacterial infection occurs, it may lead to localized redness and swelling, and may even form pus. After the cockroach bites the skin, the local skin should be cleaned up first to avoid secondary bacterial infection, if the allergy symptoms are more serious, you can follow the doctor’s instructions to take oral anti-allergy drugs, such as cetirizine, loratadine, and topical glucocorticosteroid ointment, such as dinexed ointment, hydrocortisone butyrate ointment and so on. If the skin symptoms after cockroach bite are more serious, you must go to the hospital in time, and actively treat under the guidance of the doctor.