In you car, is it bad to turn the a/c compressor on / off frequently because i do that with the defrost?

Ok first, I know it may seem unnecessary to frequently switch the a/c on and off. But I am doing it unintentionally because it rains here a lot. So when it is raining it fogs up on the inside so i switch the defrost on. But i can feel the engine kick which means the compressor is turned on and i can also feel the cold air. The defrost quickly clears the foginess on the inside but then the outside gets messed up and i have to turn my vipers on frequently. So is it bad to turn the a/c on and off frequently just in general. Thanks for the help.