Iqraalmost 2 years ago

Lichen planus

Lichen planus (LIE-kun PLAY-nus) is a condition that can cause swelling and irritation in the skin, hair, nails and mucous membranes. On the skin, lichen planus usually appears as purplish, itchy, flat bumps that develop over several weeks. The cause of lichen planus is usually not known, although possible causes include: Hepatitis C, a virus that attacks your liver. Certain medicines, including some drugs used to treat high blood pressure, diabetes, heart disease, and malaria. Reactions to metal fillings in your teeth.