Blister infection Watch for a skin infection while your blister is healing. Signs of a skin
infection include increased pain, swelling, redness, or warmth, red streaks extending away from the blister, a discharge of
pus or a honey-colored fluid, fever, swollen glands. A skin infection is more likely if the dirt remains in a broken
blister, cut, or scratch. The blister is in the genital or anal area, in a skin fold, or between the toes. You have a greater risk of infection and complications from a blister if you also have other conditions, such as
diabetes, peripheral arterial disease, or immune system problems, which cause problems with healing.
Causes
A cut or a scratch may turn into a blister-type sore that oozes a honey-colored fluid and forms a crust. This may be caused by
impetigo, which most often develops on the face but can affect other parts of the body. Most broken blisters do not become
infected if they are properly cleaned and cared for. Home treatment measures for cleaning and caring for a broken blister can
reduce your risk of an infection. Call your health professional if you have a blister and signs of infection. A health
professional can evaluate your symptoms and recommend treatment. Prompt treatment of an infection can help prevent serious
complications.
Conclusion
A blister is a bubble of fluid under the skin. The clear, watery liquid inside a blister is known to be a serum. It leaks in
from neighboring tissues as a reaction to injured skin. If the blister remains unopened, serum can provide natural protection for
the skin beneath it. Small blisters are called vesicles. Those larger than half an inch are called bullae. A blood blister is
filled with blood, rather than serum. Infections that cause blisters include bullous impetigo, an infection of the skin caused by
staphylococci bacteria. Viral infections of the lips and genital area due to the herpes simplex virus. Chickenpox and shingles
are caused by the varicella zoster virus and coxsackievirus infections, which are more common in childhood.
Fever blisters
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