Green makeup is not only appropriate for Halloween. Rosacea sufferers may find it effective in camouflaging their facial redness, pimples and visible blood vessels, according to Dr. Diane M. Thiboutot, assistant professor, Division of Dermatology, Pennsylvania State University College of Medicine, during a presentation on difficult rosacea cases at a recent meeting of the American Academy of Dermatology.

"Artful use of cosmetics can mask many of rosacea's conspicuous and embarrassing symptoms," she said. "While some patients may protest use of a green makeup, it really covers the red tone quite remarkably."

Green-tinted prefoundations are available in liquids or creams at most cosmetic counters. This can be followed by a skin-tone foundation that offers moderate to heavy coverage, depending on the thickness of the formulation.

In addition, rosacea patients should use skin care products that are water soluble, oil and fragrance free, and nonabrasive. Potentially irritating ingredients to avoid include alcohol, witch hazel, menthol, peppermint, eucalyptus oil, clove oil and salicylic acid. Any product that stings, burns or causes redness also should be avoided.