I am a hs qb and I have developed a sore/ callous on my throwing(index) finger. Any help?

I was throwing the football one day and I threw a hard pass. The skin on the tip of my index finger which is the finger i throw off ripped a little and now I have a sore/ callis on the tip. Now when I throw off of it it hurts very bad and stings. I can't just stop throwing bcuz I have football practice and 7on7. Anyone have any suggestions on how to heal his back to normal, because the skin is very tender.