Seborrheic dermatitis is the single most common rash of adults. When it occurs in infancy, it is commonly called cradle cap. The adult disease tends to favor the scalp, skin behind the ears, forehead, brows, nasolabial folds of the face, mid-chest area, and the mid-back, producing an itchy, red scaling dermatitis. The scaling in the scalp can be conspicuous, producing impressive dandruff . The cause of this condition is unclear, but it responds well to topical steroids and to topical antifungal creams. Medicated shampoos containing tar, selenium sulfide, and zinc pyrithione are often effective. This condition commonly improves spontaneously but will ultimately recur. There is no cure so treatment must continue indefinitely.
Mild rosacea may not necessarily require treatment if the individual is not bothered by the condition. More resistant situations may require a combination approach, using several of the treatments at the same time. A combination approach may include prescription sulfa facial wash twice a day, applying an antibacterial cream morning and night, and taking an oral antibiotic for flares. A series of in-office laser, intense pulsed light, or photodynamic therapies may also be used in combination with the home regimen. It is advisable to seek a physician's care for the proper evaluation and treatment of rosacea.