Updated October 2022
Truth is, I take powerful medications to treat Arthur. It's called Methotrexate and in much high doses it is used to treat cancer. In small doses it is used to treat arthritis - it is not considered chemotherapy when used for arthritis. We use it to treat arthritis because it suppresses your immune system, which does not work properly in many arthritis cases, except in the case of Osteoarthritis (arthritis you get due to wear and tear).
Though I take it in small doses once a week in pills (people with cancer can take it in pills too), it does not mean I do not get the side effects. Sure, it's much less worse than a person taking it in high doses but no doubt it's still there. I've lost some hair (most people won't lose all their hair), especially eyelashes much to my annoyance. I get mouth sores too and whilst they don't hurt, I do get that odd taste in my mouth. I get nausea too, as most people do. Fatigue happens too. In fact, when I first started MTX again in August, I was in Disney World, and I lost my appetite. I was so upset because we had reservations at all my favorite restaurants and I could barely eat any of my favourite foods.
Also, it is not very well known that Methotrexate can cause emotional changes: Depression, anxiety and mood swings. Yes. I once became very depressed for a whole school year because of if, and I only got better after having a break for a few weeks. Now, I've gotten both depression and mood swings. I get my good and bad weeks. Hopefully, Christmas will be a good week.
Anyway, my point is Arthur needs strong medications. I would be trapped in my home unable to do anything, or just be a kid.