Due to the androgen it's causing an excess stimulation of the oil ducts/glands which produce "Sebum", pre or post, thus your experiencing an increase with oily skin.. You can help combat this with a few simple principles, Use Antibacterial soups/or even dish soap ( dish soap is known for its properties of removing heavy grease and will assist with your skin). I also recommend using "Magnesium Sulfates" a few times a week in a hot soak bath... Th bath salts combined with a tanning bed and antibac soup seems to help combat this issue.