I through periods where i have a glass of wine and my face and ears get red/hot-then its fine for a while and starts again. cause?

Vasodilatation: While it is impossible to make the exact diagnosis, it is most likely an effect of alcohol causing opening up or widening temporarily of the facial blood vessels. This type of flushing can be only a temporary event, and should not be of concern and less you see the blood vessels remaining for an extended time.see a dermatologist!