There are Irlen Lenses and Irlen Contacts for those with extreme Light Sensitivity. I have a really bad case of Light Sensitivity and can not function without my Irlen Lenses. I have a stigmatism that unfortunately makes the Contacts not be a good option for me. Hate glasses.

On hugs, are gentle or big hugs easier for him? For me, light touches are hell and full body hugs are wonderful (although I sometimes get trapped hugging people and can't release them). The Wilbarger Protocol should help make hugs easier, but it won't "fix" the problem.

Does he have any problems with perfumes or incense? I had to leave a few weddings early because I couldn't breathe and my husband had to carry me out of there. The worst was at an Eastern Orthodox Christian church. Incense permeated every inch of the place and I had to leave even before the ceremony started.

Since your fiance is affected by sounds, have him pick out ALL the wedding music (including the DJ list). I did that and it made a major positive difference for my wedding. Lots of Heavy Metal songs for the reception and some Star Wars for the Processional. A million times better than painful 70's disco music.