I have a severe perforation. I had repeated ear infections as a child, grommets (twice) and Goods tubes.
I had my tonsils out aged 15, and haven't had an ear infection since. My hearing is affected, but not my much, although I do have quite bad tinnitus.
I had a consultation re repairing it, but mine is in quite an awkward place, which would mean an incision behind my ear, with no guarantee that it would work (odds were 30-40%).
Apart from slight hearing loss, it's not bothered me.
Hope he is ok.
Something that used to work for me as a child (old wives tale, but it really works!) is to cut an onion in half, then heat it in the microwave (about 20secs or so, test it first- don't burn his ear!)
Wrap it in an old teatowel, then hold it to the affected ear. Apparently it draws out impurities (and wax).