You are absolutely right
Fur ex, my onc wanted me to switch to Jakafi, very expensive, but covered by my insurance, because he felt it dies so much more. However, I experienced every negative side effect, including shingles, and had to go back on hydroxyurea
I’ve asked to switch to interferon to avoid the multiple skin cancers that require MOHS, but my dr says he doesn’t want to stop what is otherwise working for me. Said interferon can cause weakness, dizziness etc and I have osteoporosis and central pain syndrome from my stroke (So entire left side of my body is in constant burning, stinging pain with areas of numbness). He’s concerned I’ll fall. Bottom line, guess we have to each use what works best for us. I wish you the best and for your health to be good