Lichen planus is caused by the human papilloma virus. Most of them appear suddenly and are usually pinhead to rice-sized or slightly larger flat papules that are round or irregular in shape, slightly above the skin surface, or may protrude prominently to form a dome. The surface is smooth, well-defined, hard to the touch, and light brown or gray, yellowish or normal skin color. Most of them are scattered or densely packed, and some of them are fused with each other or distributed in strips along the scratches. There are usually no conscious symptoms, but there is a slight itch. They occur on the face, forehead and dorsum of the hands, but can also occur on the wrists and knees. They are mostly symmetrical and variable in number. Sometimes they coexist with common warts. They can heal spontaneously or recur, and do not leave a scar after healing.
The main reason for this is direct contact, but it can also be transmitted indirectly through contaminants, such as needles, brushes, and towels. In addition, trauma is also an important factor in the transmission of infection, often seen along the scratch distribution of flat warts arranged in the form of cords, this is an example of trauma caused by infection.
The actual fact is that you will be able to get a lot more than just a few of the most popular and most popular ones. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. The rash is more numerous, often scattered or densely distributed, and can be seen due to scratching after the phenomenon of autoinoculation DD rash along the scratch in a bead-like arrangement.