Hi Jules,
I use YES with a fair success, but I get mine on prescription. Don't know if that's an option for you?
Also, my own gp recommended using coconut oil. I got some organic stuff from health food shop a bit jar of organic stuff for about £5. It' is solid at room temperature but then the warmth of fingers make it softer to apply. I use this externally rather than internally though. May be worth trying? Others may know if it is ok internally. It feels very kind and no reactions at all. I use it last thing at night so more time to work.