Lichen planus is an inflammatory condition that can affect the skin, hair, nails, and mucous membranes (such as the mouth and genital region). On the skin, it presents as small, pink to purple, itchy, flat-topped papules. Though the rash can appear anywhere (including on the genital skin), favored sites

Lichen sclerosus is a chronic skin condition that most commonly affects the genital skin. The affected areas become thin, white, crinkled, irritated, and/or intensely itchy. Blisters and sores can also form. Left untreated, the condition can lead to scarring and can increase an individual’s risk for

Lichen simplex chronicus is a condition where repeated scratching or rubbing of a site creates a localized, itchy, thickened, leathery patch of skin. Lichen simplex chronicus can present as a solitary lesion or as multiple lesions—usually in areas that are easy to reach. The most commonly involved

Lupus is a group of autoimmune diseases where the body’s own immune system attacks healthy tissue leading to inflammation and damage in the affected organs. Lupus can affect the skin, joints, kidneys, brain, heart, lungs, and blood cells. Types of lupus include: Systemic Lupus Erythematosus (SLE)This

Melasma is a common skin condition where affected individuals develop splotchy, irregularly shaped, brown patches on the face. Common areas of involvement include the forehead, cheeks, nose, jawline, chin, and even the upper lip. It typically affects women between the ages of 20 and 40, and is more common

Morphea, also known as localized scleroderma, is a rare condition that causes scar-like changes to the skin. Morphea commonly presents as oval lesions on the trunk (chest, abdomen, and/or back). It can also present as a linear stripe on the arms, legs, and even the forehead or scalp. In its initial inflammatory

Nummular dermatitis is a type of eczema characterized by intensely itchy, red, scaly, and at times weeping or oozing, coin-shaped lesions. Nummular dermatitis typically affects the extremities, with the legs being the most common site of involvement. The condition can occur at any age, with men being

Pemphigus is a rare group of autoimmune skin diseases that causes painful blisters to form on the skin and/or mucous membranes (lips, mouth, esophagus, nose, eyes, genitals). The different types of pemphigus include: pemphigus vulgaris, pemphigus vegetans, pemphigus foliaceus, endemic pemphigus, pemphigus

Perioral dermatitis is a type of rash that typically presents as pink papules (small red bumps) and scaling around the mouth. In addition to affecting the area around the mouth, it can also appear around the nose or eyes and can be referred to as periorificial dermatitis. The exact cause of perioral

Pityriasis alba is often thought of as a low grade form of eczema. It presents with ill-defined, light colored (hypopigmented), slightly scaly patches of skin most commonly found on the face. It affects mainly children and adolescents and is often more noticeable in darker skin tones or tanned skin.

Pityriasis rosea is a common, self-limited rash that typically begins with the appearance of a solitary, enlarging, circular, pink, scaly patch - known as the “herald patch”. In the following 1-2 weeks, numerous smaller, round to oval, pink, scaly patches appear, typically on the trunk in a Christmas-tree-like

Prurigo nodularis is a condition where repeated scratching or picking at a site creates itchy, raised, hard bumps on the skin. Prurigo nodularis can appear anywhere on the body, but is most commonly found on the arms, legs, trunk, or buttocks. The condition is more common in older individuals (over 50),

Pseudofolliculitis barbae is a chronic inflammatory condition which predominantly affects Black men. Affected individuals develop pink papules and pustules around the hair follicles on the face and neck as a result of shaving. As the papules and pustules resolve, it can result in hyperpigmentation (darker

Psoriasis is a common, immune-mediated disease which causes inflammation in the body. It presents as red, scaly, plaques on the skin and can also cause pain and swelling in the joints (known as psoriatic arthritis). The most common sites of skin involvement include the scalp, elbows, and knees. Other

Rosacea is a common skin condition which presents with redness of the face, small visible blood vessels on the nose and cheeks, and pimple-like breakouts. Rosacea can also affect the eyes (ocular rosacea) presenting with symptoms such as dryness, redness, burning, and itching of the eyes. Rosacea most

Sarcoidosis is an inflammatory condition where the immune system goes into overdrive, creating clusters of inflamed tissue called granulomas to form in different parts of the body. Though it can affect many organ systems such as the skin, eyes, heart, and nervous system, involvement of the lungs and