okie so its been about three weeks sence i got rid of my fin nipping lab and my Oscar and other fish have noticably made progress once section of my os fin was almost down to the skin and its almost half way grown bak! now im wondering if i can put a natural medicine in it helps cure alot of things and its supposed to be more natural

Adding Med`s is a last resort in my book.
Only if the fish is showing redness or fungus.
If it was me I would just be doing two 50% water change`s a week and making sure the O is eating a well balance diet.
Clean water dose wonderer's for good health and healing.

I see from your other post that you have been haven problem`s with your tank.
So adding any kind of med at this point is going to make thing`s worse.

The best thing to do to help your oscars fins to heal is to keep your water quality good, your oscar will do the rest