question: Hello doctor i have ed prob which was mild for 1st year and now severe from past 8 months. I used slidnefil for 2 months as 1 tab each week. But soon realised it was momentarily relief. When i get into foreplay penis gets hard about 50 percent only and then off instantly. I often have morning boner thing as normal but problem of ed is there along with pre-ejac too.Kindly help on this.