Two-in-one and one-of-a-kind; misunderstood and misidentified; generally mysterious and undoubtedly magical: that is lace lichen. Some think it causes harm, like a parasite. Not true, says Sebastopol ...

I thought I had thrush and tried to treat it with over-the-counter medicine. After seeing a doctor and explaining my symptoms, I was diagnosed with lichen sclerosus. I had never heard of the condition ...

Lichen planus is more of a chronic discomfort than a serious health concern. However, people with the oral form have a slightly higher risk of developing oral cancer. Lichen planus is a group of ...

Lichens on stone, those “still explosions” as the great American poet Elizabeth Bishop named them, remain unseen to most, which is remarkable when you consider how commonplace they are. It seems these ...

If you come across a rock in its natural setting, you will likely find it covered by lichens, proof that nature is alive. What are lichens? Lichen is not a single organism, it is made up of two parts: ...

What could possibly be inspiring about that green stuff covering Oregon’s trees? What could possibly be inspiring about that green stuff covering Oregon’s trees? Lichen is a an ecological wonder that ...

Lichen planus is an inflammatory condition that can affect your skin and mucous membranes. Researchers do not yet know the exact cause, but hepatitis C may be one possible risk factor. Lichen planus ...

Sometimes tiny skin bumps erupt in the summer on various parts of the body. Among the possible causes of these bumps is lichen nitidus, a rare inflammatory disease. Although the name may sound ...