Sprained both foot and ankle, never once tried BPC or peptides

I believe it’s a grade 2 sprain, I injured it in BJJ 5 days ago.I got a referral to a podiatrist so I’m waiting on that. I just want to heal, my job depends on me walking as well, and while I can walk i think I’m re injuring it. Anyone been in a similar position care to share their experience?

Some say to inject at the site of the injury but others say inject in the belly? What is better?