Small blisters on the back of the feet are itchy and may be caused by papular urticaria, eczema, tinea pedis and other diseases.
1. papular urticaria: with papular urticaria, blisters on the back of the feet, mostly due to local vascular congestion. When the blood vessels of the skin and mucous membranes are temporarily congested or when a large amount of fluid leaks out, local edema can be caused, resulting in rashes, blisters or itching.
2. Eczema: Eczema is an allergic skin disease. The reason why it can cause blisters and itching is because when the disease, the body’s glucocorticoid secretion is reduced, the inhibition of allergy is relatively weakened, which leads to the above symptoms are more obvious.
3. Ringworm of the foot: Usually, ringworm of the foot occurs in summer, when the feet sweat or wear impermeable shoes and socks, the fungus will survive in this environment and reproduce uncontrollably, thus triggering ringworm of the foot. The typical symptoms are small blisters on the skin of the feet and itching.
Itchy blisters on the back of the feet, there may also be other reasons, it is recommended to go to the hospital in time to improve the examination to determine the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.