Lichen planus is a skin rash triggered by the immune system. It’s not currently known why this immune response occurs. There may be several contributing factors, and each case is different. Potential ...

After the distraction of fall leaves has passed, don’t assume that your garden is dormant. It’s time to appreciate the beauty of lichen. By Margaret Roach What are lichens? They are neither plant nor ...

Lichen planus is an inflammatory skin condition that causes a rash that is usually itchy. It consists of small, shiny, slightly raised, flat-topped bumps that can be pink or purple in color. Lichen ...

Oral lichen planus can cause white lesions to appear in your mouth, often on the insides of your cheeks. It may result from an infection, certain medications, or other health conditions. Lichen planus ...

Lichen sclerosus is an uncommon, long-term skin condition where small patches of skin become thin and colorless. The condition can affect any part of the body but most often occurs in the skin around ...

A lichen, or lichenized fungus, is actually two organisms functioning as a single, stable unit. Lichens comprise a fungus living in a symbiotic relationship with an alga or cyanobacterium (or both in ...

The audio version of this article is generated by AI-based technology. Mispronunciations can occur. We are working with our partners to continually review and improve the results. Most people know ...

What Is Oral Lichen Planus? Oral lichen planus is a long-lasting disease that affects your mouth, causing symptoms such as painful white patches, redness, and swelling. It doesn't go away, but you may ...