Many people know Rosacea with having red, flushed face sometimes with small pimples or spider like veins. For the person experiencing the symptoms the skin can feel dry, itchy, hot or burning, stinging sensation, sensitive in the sun and easily blushes. Like most skin flare ups there is usually a trigger to cause the symptoms. Rosacea flare ups occur when something causes the blood vessels in the face to expand, which causes redness. It usually comes down to how stressed or run down you are, if your diet is triggering any auto-immune responses, or irritation from too much sun. Rosacea is an inflammation problem that comes out as a rash..