Hi Davina,
The last 5 years must have been so tough on you both. I have MM and I have offspring in their twenties. To watch your son go through the diagnosis, treatment and side effects would have been traumatic.
You aay that he is coming out of remission. The chemo has improved over the last 5 years. New treatments such as bispecific antibodies have been approved and refined (the side effects are better controlled now), and they are highly effective for a large majority of patients. You might want to read the discussion on the ‘Treatment’ section of this forum about Elrantamab, for example.
He has to have treatment and you have to watch and help as best you can. There is no other way, but he and you will get through it, and there will, honestly, be better days ahead.
Regards
Rabbit