Well if it makes you all feel better, my DS1 who is 10 now has only been dry for about 8 weeks now! woohoo too may i say! still wont hold my breath as we are prepared for a relapse too. BUT, we have been down every avenue you can think of. we tried the bed wetting alarm when he was 7, didnt work, he wasnt ready. left it for a while. tried the nasal spray when he was 8, as that was the age they would prescribe it, but it honestly sent him hyper and didnt make a change either. I tried the chiropracter, got a couple dry night then back to normal. We tried being nice about it, getting cross with him, lifting them at night, which the enuresis clinic advise against. by this time he was usually already wet too. I think in the end we just tried to ignore it, hope he would grow out of it. But Then he wanted to do things, like go for sleep overs, sport camps and realised he had an emabarressing problem. So i asked if was ready to really try fix it, he said yes. So went back to the bed wetting alarm. I was sure it would work, as the first week it was going of 1-2 times a night, then he went a couple nights, then it was a week, bext thing i knew it was 2 weeks. Once he went 3 weeks without a wet, we got to return the machine! it has been a huge relief in this house. I do expect a few accidents here and there, but we are miles ahead of where we were.
Honestly if they have ruled out all medical problems, dont push them, they need to be ready. as frustrating as it is, there is light at the end of the tunnel.