Everyone is different but I can't imagine that low of a dose would cause the redness. Are you consuming any alcohol? When I'm on cycle if I have even 1 beer I get flushed and feel hot.
a total of 200mg a wk? I really hope you meant 200mg for a total of 400mg a wk.
Most people have a reaction due to the alcohol content, or other factors like having the body getting used to the intake of a foreign matter. there are others but! if the problem goes away i wouldn't worry about it too much.