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.
Tetracycline, doxycycline, minocycline, and amoxicillin are among the many oral antibiotics commonly prescribed and they actually help reduce inflammation and pimples in rosacea. A newer low-dose doxycycline preparation called Oracea (40 mg once a day) has been used in rosacea.