I had a kidney removed and after waiting a month. Surgeon cleared me to return to work and I sent that to TC. They emailed back that I can return and if they want me grounded, they'll mail me grounding letter. Do you have Cat 1?

Hello all, I was diagnosed with renal tumor which has been removed. I'm clear of cancer now and TC also cleared me to return to work. But I have been recommended Immunotherapy (Pembrolizumab) which will last a year. I'm wondering if I can continue flying with my Category 1 medical while undergoing t...