HowStuffWorks does not recommend popping a fever blister, or cold sore, as doing so allows the liquid inside to spread the virus. There are many steps to take that encourage healing of a fever blister. More »

When blisters are small, the safest approach is to avoid popping them; however, if they are on a weight-bearing area of the foot that prevents walking, Mayo Clinic recommends draining the blister using a disinfected need... More » Health Conditions & Diseases Skin Conditions

The National Health Service of the U.K. states that it is never a good idea to pop a blood blister. By doing so, you invite the risk of infection and compromise the body's natural healing process. More » Health Conditions & Diseases Skin Conditions

Bedsores may look like discoloration on the skin, a blister with fluid, or a crater-like ulcer, depending on the stage. In severe cases, bedsores can show muscle and look yellow or crusty due to dead tissue, notes Mayo C... More » Health Conditions & Diseases Wounds & Bruises

According to Everyday Health, it's best to cover a blister with a bandage for protection until it dries. This is particularly important to help decrease the risk of infection if the blister has been popped. More »

Blisters commonly heal on their own, but treatments such as covering the blister with a loose bandage or draining the blister can help enhance healing, prevent infection and decrease pain, explains WebMD. Torn or drained... More » Health Conditions & Diseases Wounds & Bruises

A blood blister on the tongue is called angina bullosa hemorrhagica, or ABH, and is the collection of blood under the skin of the tongue, according to Medscape. It is usually not associated with any other medical issues. More »