Psoriasis Glossary: L
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This glossary defines commonly used Psoriasis terms, including products and medications used in the treatment of psoriasis and other skin conditions that co-exist with psoriasis such as acne, rosacea, eczema and dermatitis.
Lamellar Dyshidrosis:also known as 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.
Lanacort®: Hydrocortisone – a natural chemical made by the body which reduces swelling, itching, inflammation and burning. The most common prescribed and/or over the counter steroid often used for the treatment of the symptoms of psoriasis and eczema. Very low potency steroid. Also sold under the brand name(s): Cetacort®, Nutracort®, Anusol-HC®, Hytone®, Cort-Dome®, Cortenema®, Cortifoam®, Cortaind®, Locoid®, Westcort®
Laser surgery: a type of surgery that uses special light beams instead of instruments for surgical procedures. (The word "laser" stands for "Light Amplification by the Stimulated Emission of Radiation").
Lesions: a wound or injury to the skin.
Lichenification: thickening upper layers of the skin in response to trauma(thickening of the skin due to itching or rubbing). Commonly occurs in atopic dermatitis.
Lichen Planus:a common skin disease resulting in purple or reddish-purple bumps that may be itchy or contain a fine scale. Lichen planus may occur on the skin, mouth, scalp, genitals, or nails.
Lichen simplex chronicus: occurs because of repeated scratching, may appear as small and flat areas (plaques) of various sizes, 1 to 10 inches (2.5 to 25 centimeters) in diameter. These areas have definite margins that have become thick and leatherlike (lichenified). This type of eczema is also known as neurodermatitis can occur when something such as a tight garment rubs or scratches your skin. This irritation may lead you to rub or scratch your skin repeatedly. Common locations include ankles, wrist, outer forearm or arm, and the back of your neck.
Licon: (Fluocinonide), a high potency corticosteroid. Also sold under the brand name(s): Fluonex® , Dermacin, Fluex, Lidex, Lidex-E
Lidex®: By Medicis, (Fluocinonide), a high potency corticosteroid. Also sold under the brand name(s): Fluonex® , Dermacin, Fluex, Licon, Lidex, Lidex-E
Light Sensitive Eczema: eczema caused by exposure to sunlight
Locoid®: (Ferndale), - Hydrocortisone – a natural chemical made by the body which reduces the symptoms of swelling, itching, inflammation and burning. The most common prescribed and/or over the counter steroid treatment. Very low potency steroid. Also sold under the brand name(s): Cetacort®, Nutracort®, Anusol-HC®, Hytone®, Cort-Dome®, Cortenema®, Cortifoam®, Cortaind®, Lanacort®, Westcort®
Lotrisone®: by Schering, (Clotrimazole, Betamethasone dipropionate),cream and lotion contain a combination of a steroid (betamethasone) and an antifungal drug (clotrimazole). It is used to treat eczema skin infections caused by fungus, such as athlete's foot, jock itch, and ringworm of the body.
Lupus:an autoimmune disease,facial symptoms include a butterfly rash along the cheeks, sometimes confused with rosacea or psoriasis. The symptoms of lupus include chest pain, hair loss, anemia (a decrease in red blood cells), mouth ulcers, and pale or purple fingers and toes from cold and stress. Some people also experience headaches, dizziness, depression, confusion, or seizures.
Lymphoma: malignant tumor of lymph node tissue
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