Small blisters on the buttocks_Blisters on the buttocks are very itchy

Shingles is a disease caused by a virus. The area around the buttocks will be relatively moist, and this area is prone to the breeding of bacteria and viruses. Small blisters will grow in the anus area, and it will feel extremely itchy. The incubation period of this disease is relatively long, so it must be addressed in a timely manner and treated from the root. You can apply ointment to relieve symptoms and clean the anus before going to bed every night. The following are specific methods.

Herpes zoster is an acute infectious skin disease caused by the varicella-zoster virus. Children who are not immune to the virus develop chickenpox when infected. Some patients become carriers of the virus after being infected but do not develop symptoms. Because the virus is neurotropic, it can remain dormant in the neurons of the dorsal root ganglia of the spinal cord for a long time after infection. When the resistance is low or when you are tired, infected, or have a cold, the virus can grow and multiply again and move along the nerve fibers to the skin, causing severe inflammation of the invaded nerves and skin. The rash is generally unilateral and distributed according to nerve segments, composed of clustered herpes and accompanied by pain; the older the age, the more severe the neuralgia. This disease is more common in adults and is more common in spring and autumn. The incidence rate increases significantly with age.

Humans are the only host of the varicella-zoster virus. The virus enters the blood through the respiratory mucosa to form viremia, causing chickenpox or latent infection. The virus can then remain latent in the dorsal root ganglia of the spinal cord or the sensory ganglia of the cranial nerves for a long time. When the body is exposed to some kind of stimulus (such as trauma, fatigue, malignant tumor or weakness after illness, etc.) that causes the body's resistance to decrease, the latent virus is activated and travels down along the axons of the sensory nerves to the skin of the area innervated by the nerves, where it replicates and produces blisters. At the same time, the affected nerves become inflamed and necrotic, causing neuralgia. After recovery from this disease, more lasting immunity can be obtained, so it generally will not recur.

Before the rash occurs, there may be systemic symptoms such as mild fatigue, low fever, and poor appetite. The affected skin will feel burning or neuralgia, and there will be obvious pain sensitivity when touched, which lasts for 1 to 3 days. The rash may also occur without any prodromal symptoms. The most common sites are the areas innervated by the intercostal nerves, cervical nerves, trigeminal nerves and lumbar sacral nerves. The affected area often first develops erythema, soon followed by millet- to soybean-sized papules, which are clustered and not fused, and then quickly turn into blisters with tense and shiny blister walls, clear blister fluid, and a red halo around the periphery. The skin between clusters of blisters is normal. The lesions are arranged in a band-like manner along a peripheral nerve, mostly on one side of the body, usually not exceeding the midline. Neuralgia is one of the characteristics of this disease, which may occur before the onset of the disease or accompany skin lesions, and is often more severe in elderly patients. The course of the disease is generally 2 to 3 weeks. After the blisters dry up and the scabs fall off, temporary light red spots or pigmentation remain.