Will my astigmatism go away after PRK?

I had PRK surgery on both eyes 3 weeks ago. My left eye is 20/20 but the right eye still has some astigmatism correction left. I believe my astigmatism was 3.0 before surgery- the doctor said it was high in both eyes. He said at this point it is possible that the epithileum still needs to smooth out which is causing the astigmatism, or that the surgery did not get all the astigmatism. He gave me a bandage lens to wear for a month to see if that helps. Do you think I will need an enhancement?