What should you know about lichen planus associated with hepatitis c?

Lichen planus is an inflammatory condition that can affect skin, mouth, nails or genital tissue. Hepatitis C is a viral infection that affects the liver. Some people with lichen planus also have hepatitis C, but many do not, and the skin condition can have other explanations. A rash cannot diagnose a liver infection. If testing is appropriate, a clinician uses blood tests and interprets them alongside your history and risk factors. A diagnosis of lichen planus should therefore prompt a sensible medical discussion, not an assumption about its cause.

Tell your dermatologist about known liver disease, past hepatitis testing, alcohol use, medicines and supplements. Ask whether hepatitis C testing fits your personal history; do not order treatment for either condition based on a rash alone. Skin care may include a fragrance-free moisturiser and a prescribed topical corticosteroid. Oral corticosteroid treatment requires particular discussion when liver health and other medicines are involved. Read about [Lichen Planus](/conditions/lichen-planus/) and the treatment topics [Topical Corticosteroids](/treatments/medical-dermatology/topical-corticosteroids/) and [Oral Corticosteroid Treatment](/treatments/medical-dermatology/oral-corticosteroid-therapy/) as preparation for that conversation.

Arrange prompt review for yellowing of the eyes or skin, dark urine, marked abdominal swelling, confusion, vomiting blood, or a rapidly worsening rash. Seek urgent help for breathing difficulty or facial swelling after medicine. Persistent mouth sores, painful genital lesions or a non-healing skin area also need examination.

Ask whether hepatitis C testing is appropriate, how results would be confirmed, whether medicines need review, and which lichen planus treatment is suitable for your liver history.