Bedbug bites and redness and swelling can generally be treated with general treatment or medication to relieve symptoms. 1. General treatment: red and swollen bedbugs bite can use ice or cold water cold compresses, can be appropriate to relieve the symptoms of redness and swelling. 2. medication: if the situation is more serious, you can use medication, such as oral loratadine, cetirizine, but also can use glycerine lotion, mometasone furoate cream and other medications applied externally, can be effective in relieving the symptoms. After being bitten by bedbugs, it is best not to scratch the skin with your hands, so as not to lead to skin breakage and infection, and usually need to keep the skin clean. All of the above drugs should be used under the guidance of a doctor.