Glossary K

Rosacea Definitions

This glossary defines commonly used rosacea terms, including products and medications used in the treatment of rosacea and other skin conditions.


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Keratitis – A non-penetrating erosion, or open sore in the outer layer of the cornea, the center portion of the eye that surrounds the pupil. Sometimes associated with ocular rosacea. Alternative names: bacterial keratitis; fungal keratitis; acanthamoeba keratitis; herpes simplex keretitis; corneal ulcers and infections.

Keratolysis Exfoliativa: a harmless condition of the skin, often misdiagnosed as chronic contact dermatitis or psoriasis. It primarily appears on the palms of the hands or soles of the feet. The symptoms are characterized by dry skin and air-filled blisters. The blisters peel off easily, leaving reddish, tender areas. Also known as Lamellar dyshidrosis.

Keratosis pilaris: symptoms appear as small, rough bumps, generally on the face, upper arms, and thighs. Commonly occurs in atopic dermatitis

Ketoconazole – an antifungal preparation. It is used in the treatment of sebborrheic dermatitis with the rationale that sebborrheic dermatitis is caused by a fungus which lives on everyone’s skin and is normally non-pathological. It is the main ingredient in Nizoral.

Kinerase® – a moisturizing cream containing N6-furfuryladenine (für-für-el-ad-e-nen).

Klaron® – Sodium Sulfacetamide (sull-fuh-SEET-uh-mide) Lotion. Topical antibiotic medication used in the treatment of acne.

Koebner’s phenomenon – psoriatic lesions appear at the site of injury, infection or other skin problem. The lesion may trigger the initial onset of psoriasis, or may be a new lesion in an existing case of psoriasis.