I WAS WONDERING IF "CLOTRIMAZOLE & BETAMETHASONE DIPROPIONATE CREAM USP"

I WAS WONDERING IF "CLOTRIMAZOLE & BETAMETHASONE DIPROPIONATE CREAM USP" CAN BE PURCHASED OFF THE SHELVES IN LIEU OF GETTING A DR'S PRECRIPTION?
ALSO, I HAVE IBS WHAT CAN I TAKE FOR THAT? I HAVE A NERVOUS STOMACH EVERY TIME I GO OUT WHICH RESULTS IN I HAVE TO USE THE BATHROOM FRQUENTLY. ISN'T THERE A NERVOUS STOMACH PILL THAT I CAN TAKE TO CALM DOWN MY STOMACH???