As you can see, the greatest climate change during the year comes between the summer and winter months. In places like Kahului, Maui, the decline in temperature is as much as 10 degrees Fahrenheitâdropping from an average temp of 79.2 in August to a chilly (for Hawaii) 68.9 average in January.
Vitamin C, in the form of L-ascorbic acid, has anti-inflammatory effects that act specifically on the blood vessels which can reduce redness and irritation of the skin. Vitamin C can also control the release of histamine, a chemical that dilates the blood vessels during an allergic reaction. Because it can reduce redness and prevent excess blood flow to the skin, vitamin C may be beneficial in controlling the swelling and redness associated with rosacea.
Topical alpha lipoic acid can decrease the redness associated with rosacea, which is not lessened when treated by prescription medications such as Metronidazole. Elizabeth Tanzi, MD (skinlaser.com). Avoid rosacea triggers such as hot weather and sun, cold and windburn, and red wine. Most importantly, a series of laser or light-based treatments can be very effective to reduce the redness and improve rosacea by closing down those dilated blood vessels in the face. Howard Murad, MD (murad.com). Keep it simple.