A blister is a rounded swelling or bulge on the skin containing fluid.

Causes

• Friction
• Exposure to intense heat or cold
• Allergic reactions to chemicals or insect bites
• Certain health conditions such as chicken pox

Symptoms

• An elevated area on the skin filled with serum, pus or blood
• Tenderness and pain in the affected area
• Redness around the affected area

Treatment
Most blisters heal on their own. Some things to keep in mind are:

• Do not burst the blister
• Try to keep the affected area clean without applying pressure
• Cover with soft sterilized dressing to protect it from rubbing against things during the day
• Take medical help if the blister gets infected

Prevention

• Wear well fitting and comfortable shoes
• Wear gloves to avoid friction when doing activities causing excessive rubbing
• Keep skin clean and dry
• Avoid strong detergents and chemicals
• Avoid excessively hot or cold temperatures