A blister is a pouch of fluid between the upper layers of skin. The blister bubble is formed from the epidermis, the uppermost layer of skin. Blisters can be filled with serum, plasma, blood or pus depending on how and where they are formed.

The most common causes of blister formation are friction, freezing, burning, infection, and chemical burns.

Blisters most often show up on the feet or hands, but they can appear anywhere on the body. The most common blister formation happens when we wear too-tight shoes and they repeatedly rub against our skin.

The main types of blisters are:

Friction Blisters
Blood Blisters
Heat Blisters

Other types of blister are named after the condition they are linked to, such as chickenpox and shingles blisters, and atopic eczema blisters.

Although blisters are a painful annoyance, they do not typically signify any medical issues. By following a few basic rules like wearing hand gloves, not wearing too-tight shoes etc blisters can often be prevented.

If at all they happen they can be treated initially home, in case they’re too severe do not wait, quickly see a dermatologist.

Frequently Asked Questions

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