Suggest Treatment For Erection Problems

I have always had problems with "morning" erections. This is a situation where my mind and body are not making a connection. I have no control over this and wearing pants(jeans) during the morning has caused me discomfort for years ever since high school. Now when I lay down to sleep(night or day) I have to do so nude because my garments will provoke the throbbing. In the last few months I have not been able to lay on my stomach or on my side as I sleep. I'm awaken at night by the problem and sometime I'm FULLY erect. It's hard to lay on my back and sleep. Any contact whatsoever now incites the throbbing. I'm never aroused mentally, its a physical burden. I've recently started taking DIVALPROEXE due to anxiety. This was given to me approximately around the time sleeping became unbearable. This medicine might also causing my skin to break out with acne heavily on my forearm and back/rear. Any suggestions are appreciated this is becoming a significant problem, affecting my sleep and concentration in the morning.