I suffered from tonsillitis twice a year during childhood. My doctor "didn't believe" in routine tonsil removal (when almost every other GP did) and told my mother I would "grow out of it". I never did.
When I was 21 and suffering one of my bouts I developed Quinsy (proper name "peritonsillar abscess"). My throat closed almost completely and I was struggling to breathe. My Mum called a cab and took me to A&E. I was seen immediately by an ENT consultant who lanced my tonsils there and then. No anaesthetic, nothing. (To be honest my throat was so painful that it didn't really matter). I was admitted and spent four days on various drips, rehydrating me and pumping me with antibiotics. I learned during that stay that the quack almost certainly saved my life.
Three months later, after all had settled down, I was back in for a planned tonsillectomy. It was not a pleasant experience (such a procedure even now is not very clever once you reach adulthood). I spent ten days in dock, seeing two lots of children come and go, having had their tonsils out. They were usually playing football up and down the ward the day following their surgery. The only adult among my fellow patients was an Australian Speedway rider by the name of Gary Middleton, now sadly deceased:
http://www.speedwayplus.com/MiddletonMystery.shtml
He was also in for the same reason as me and we gave solace to each other in our misery. So good luck to your grandson, Caran. I wish him well. If tonsils have to be removed, far better it is done in childhood, I think.