Replying to Allergy testing? experience?

can anyone share their experience with getting tested for allergies? i know that i'm allergic to a few things like cats, some fruits, and pollen, but i have heard you can go to the doctor and they can help figure out what all you are allergic to by exposing your skin to different things... idk if anyone has done this help me out please!

and is it possible to tame an allergy? what i mean is.... i'm allergic to cats, but i reallllllllly really would love to have a pet cat and if there is a way to rid myself of this awful allergy other than just taking allergy meds every day i would do it in a heartbeat.