Q. Can indoor temperature affect my rosacea?

A. It is possible that indoor temperature could affect rosacea in certain cases, since anything that causes a sufferer to flush may have the potential to lead to a flare-up. Hot weather has been documented on surveys as a rosacea trigger for 53 percent of sufferers, and being "too warm" indoors can also induce flushing.

A survey recently conducted by the National Rosacea Society helps identify types of skin-care products that commonly pose problems for rosacea sufferers and which ingredients may be important to avoid.

You don't have to feel like hiding your face the moment your rosacea flares up. Many makeup products, available through the popular cosmetic lines, can help camouflage redness and pimples. Here are some general guidelines for selecting cosmetic products.

• Choose water-based moisturizers and light, oil-free makeup products.

• Try a color-correcting prefoundation base in shades of yellow or green to counter redness, or makeup with natural yellow tones. Avoid makeup with pink or orange hues.

Topical antibiotics are widely prescribed to reduce redness, bumps and pimples as well as to help maintain remission of rosacea. Here is a way recommended by medical experts to use your medication in combination with other skin care products.

1. Cleanse your face each morning, being careful not to irritate it. Rinse with plenty of water, and use a cotton towel with a thick pile to blot your face dry. Then wait for it to air dry.