How does herpes develop? What is herpes?

Herpes is a viral disease caused by the herpes virus. Herpes will have the following harms:

1. A few days before the rash, there are often fever, fatigue, loss of appetite, swollen lymph nodes in the local fissure, hypersensitivity or neuralgia in the affected area, but the symptoms of herpes virus infection can also have no prodromal symptoms. The symptoms of herpesvirus infection appear in the skin lesions as local ** tidal bend red, followed by clusters of miliary size papules in the symptoms of herpesvirus infection, which quickly turn into vesicles, the blister fluid is clear, the blister wall is tense and shiny, and there is redness around it.

2. The symptoms of herpes virus infection are distributed along one side of the cutaneous nerve in the skin lesions, arranged in a band, and the blister groups between the clusters are normal. Lesions generally do not exceed the midline.

3. Neuralgia is one of the symptomatic features of herpes, and the symptoms of herpes virus infection can be teasing before or accompanied by rash. Pediatric patients tend to be milder or more painful, and older patients have severe pain, symptoms of herpes virus infection, and neuralgia that often persists for a long time after the damage has resolved.

4. The onset of herpes is rapid, and the symptoms of herpes virus infection are acute, and the whole process is about 2 weeks. Herpes** may be followed by temporary pigmentation, usually without scarring in the absence of secondary infection.

Herpes is caused by a viral infection, and it is an umbrella term for a large disease. Viruses that cause herpes vary depending on the virus.

Varicella-zoster virus can cause herpes zoster, usually with obvious pain, like a pinprick or fire, in bursts of attacks, in the early stage of the disease may be ** itching sensation, and then it may be mainly pain.

Herpes is a relatively common infectious disease, which is generally caused by a viral infection. Herpes simplex virus is further divided into herpes simplex virus type 1 and herpes simplex virus type 2. Herpes simplex virus mainly infects the waist upwards.

The herpes virus enters the human body through the mucous membranes of the respiratory tract and is transmitted through the bloodstream, causing the onset of **.

Herpes simplex: It is caused by the herpes simplex virus, which can be latent in the human body for a long time after infection, and can induce its attack when the body's resistance is reduced.

Herpes zoster: is caused by the varicella-zoster virus. In some patients, the virus can remain dormant in the nerve roots for a long time, and when the resistance is low, the virus can multiply again and cause clinical symptoms.

Herpes viruses have the following common characteristics: The virus is spherical in shape, and the surface of the viral nucleocapsid is a symmetrical 20-hedral body composed of 162 shell particles, and inside it is a core composed of DNA. The nucleocapsid is surrounded by a lipoprotein envelope, and the peripheral diameter of the virus is 150 to 200 nm.

Except for Epstein-Barr virus, all can replicate in the nucleus of diploid cells, and eosinophilic inclusions appear in the nucleus. The virus can spread directly through intercellular bridges. Herpesviruses mainly invade the tissues of the ectoderm, including **, mucous membranes, and nervous tissues.