Growing Azaleas?

I bought a potted azalea in coconut fiber a month ago and they started to wilt already (I made the mistake of putting it out in the sun for a 2 days). I have no idea about plants and I'd like to know what to do now that the flowers are starting to wilt. I read somewhere that I should transfer it to a garden soil (out of the pot). Are there any fertilizers that should be given to the plant? When will it start to bloom flowers again? Thank you.

By Raina Supercalifragilistic G.