What Is a Cutaneous Horn? Skin Growth Appearance, Causes & Removal Options A cutaneous horn is a hard cone-shaped or spike-like projection from the skin made of compact keratin. It is not a final diagnosis by itself because the

What Is Cutaneous Candidiasis? Yeast Skin Infection, Causes & Treatment Options Cutaneous candidiasis is a superficial yeast infection of the skin caused by overgrowth of Candida, a yeast that can normally live on the skin but can cause infection

What Are Corns and Calluses? Thickened Skin, Causes & Treatment Options Corns and calluses are hard, thickened areas of skin that form when the skin protects itself from repeated pressure, rubbing, or friction. Pressure relief is central because the

What Are Cold Sores? Lip Blisters, Triggers & Treatment Options Cold sores are small painful blisters, usually on or around the lips, caused by herpes simplex virus that can stay dormant in the body and reactivate later. They are

What Is Chondrodermatitis Nodularis? Ear Nodule Pain, Causes & Treatment Options Chondrodermatitis nodularis is a benign inflammatory condition of the ear skin and cartilage that usually causes a small, very tender nodule on the helix or antihelix of the

What Is Chloasma / Melasma? Skin Pigmentation, Triggers & Treatment Options Chloasma, more commonly called melasma, is an acquired pigmentation condition that causes darker patches or spots, usually on the face. Melasma is chronic and relapse-prone, so treatment focuses