A growing redness of the skin can often signal the beginning of a much more unpleasant condition – painful blisters.
Blisters are fluid-filled sacs that resemble fleshy bubbles on the surface of the skin. They most commonly appear on the feet as the result of friction from shoes that don’t fit properly. If the fluid sack is ruptured, blisters can become infected and begin to form pus, thus making the already lingering issue even more difficult to deal with.
There are many causes of blisters, including:
Irritation: One of the most common causes of blisters is skin irritation caused by friction or exposure to extreme cold (frostbite) or heat (sunburn). In some other cases, blisters are caused by irritation from contract with certain chemical and could eventually lead to dermatitis.
Allergies: Allergic contact dermatitis, a form of dermatitis or eczema, may result in blisters. Allergic contact dermatitis is caused by an allergy to a chemical or poison. The majority of these poisons are found commonly in nature in plants like poison ivy and poison oak.