Severe allergic reactions can manifest as bumps and tongue swelling. Tongue swelling is a symptom of anaphylaxis (allergic shock), a severe, and possibly fatal, body-wide response to an allergen.

Physical triggers, allergic reactions, or medical conditions can cause hives, and they can develop anywhere on the body. The arms and legs are more likely to react to contact triggers, such as ...

What It Looks Like: A scrawled red line on the face or body. The Likely Culprit: A broken blood vessel, also known as a spider vein. These can occur due to weather changes, pregnancy, or genetics.