i wish my mother would do it because she has the same prob. i remeber seeing in here pics of people getting better from doing the MC.
but you should also read up while fasting on all the food triggers that can cause breakouts too.
i also have gathered that Liver Flushes in addition to the mc help this condition.
these are done at the end of the Master-Cleanse and are usually a series.
read up on them in the Liver Flushing forum
have you tried using neem soap? neem is helpful in healing the skin with this problem.