What does MD mean after my doctor's name? MD means Doctor of Medicine Doctor of Medicine (MD, from the Latin MedicinÃ¦ Doctor meaning Teacher of Medicine) is a doctoral degree for physicians granted by medical scho â¦ ols.
Most insects sting as a defence by injecting venom into your skin. 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 causes a swollen, itchy, red mark (a weal) to form on the skin. This can be painful, but it's harmless in most cases.
Symptoms of insect bites and stings. An insect bite or sting often causes a small lump to develop, which is usually very itchy. A small hole, or the sting itself, may also be visible. The lump may have an inflamed (red and swollen) area around it that may be filled with fluid.