A blister (bulla) is caused when the outer layer of the skin separates from a layer of skin below, creating a collection of fluid between the layers. Athletes are at high risk of acquiring blisters due to repetitive friction between skin and shoes, socks, and sports equipment.
Blisters typically develop on the soles of feet and the palms of hands when there is friction and irritation on the surface layer of the skin.Depending on the severity as well as the stage of the blister, the appearance may vary.
Additionally, those who wear ill-fitting, uncomfortable shoes or who handle tools that cause friction are at risk for getting blisters.


Early stage blisters – redness of the skin on the affected area, such as on the heel, the instep, toes, or palms. Depending on the cause of the blister, your doctor may treat the blister ranging from conservative measures, such as watchful waiting, to treating the source of the blister(s) if caused by a disease. If the blister has been caused by frostbite, see the Frostbite, First Aid write-up, which can also be found via the Disease List.First Aid GuideBlisters often go away on their own without needing any care, and the skin over the blister is its best defense against infection. If the blister is large or painful, however, you can drain the blister in such a way as to relieve the discomfort and hopefully avoid infection.


The following measures will help prevent blisters from occurring: Wear acrylic socks, particularly ones that fit you well.
While cotton socks were once the recommendation to avoid blisters, they tend to become misshapen when wet and are never as form-fitting as acrylic socks.



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