Question: what is a bug bite with a red ring around it?
Answer: Symptoms of an insect bite or sting When an insect bites, it releases saliva that can cause the skin around the bite to become red, swollen and itchy. The venom from a sting often also causes a swollen, itchy, red mark (a weal) to form on the skin. This can be painful, but it's harmless in most cases.