What causes herpes labialis?

Herpes labialis, also known as herpes facialis, is the most common type of herpes simplex. The cause is infection with the herpes simplex virus. The initial symptoms are often local burning, itching and flushing. So what are the causes of herpes on the lips?

Viral infection (30%)

Oral herpes is a viral skin disease caused by infection with the herpes simplex virus. It often occurs in normal people as well. It is mostly due to fever or excessive fatigue of the body at a certain stage, excessive physical energy consumption, and insufficient supply of various nutrients in the body, which leads to a decrease in immunity.

Decreased immunity (30%)

When a patient has a fever, his body resistance is low and saliva secretion decreases, which weakens the flushing effect on the oral cavity. Food residues are easily retained in the mouth, creating good conditions for the growth and reproduction of microorganisms. When a patient has a fever, the mouth often becomes a haven for bacterial growth. At such times, the virus often takes advantage of the opportunity to enter and attack the skin around the lips, gums, etc.

Environmental factors (30%)

The temperature is too high in summer, the body's metabolism speeds up, and the consumption of nutrients increases. High temperatures often cause a decrease in appetite and lack of sleep, resulting in a lack of nutrients such as protein, vitamins, and electrolytes in the body, which reduces immunity.