Propecia and an Increase in Testosterone

I thank you for your time and for effort in keeping up this blog. I have been taking propecia for a month now and since starting I have developed very oily scalp as well as acne all through my hair and forehead. I know that there can be an initial increase in testosterone and was wondering why this would only be temporary? How long does this usually last and what will happen to the excess testosterone over time ?

The body has feedback loops, which means it senses what is happening to it and tries to correct any imbalances that are created either from disease or from drugs. The increased testosterone can take up to 3 months to correct. As for the acne from Propecia, see here.