Viagra - works for me.
I posted elsewhere on here a few days ago about it. Don't mess about, get brave, speak to your GP. Mine was great, really helpful and understanding, no smirks or comments, just sound advice what it does and when, and what to expect (like being 60 not 17!). Don't suffer needlessly.
It isn't difficult to use, other than half hour wait for effectiveness, and note it does not give an erection regardless, but only when 'in the mood' so to speak. I get a little stuffy afterwards and in bright light a feint blue tinge for an hour. It works all morning though, you can have seconds….. I get what they call a 'private prescription', £5 for 4. It may be different for you, I don't live in the UK but the Isle of Man. I have found after some use of it things have improved naturally on many occasions, my GP said this is a common thing and is good.