Gripe Water

Anyone here uses gripe water? My LO is 7 wks and gets really fussy, gassy and hicuppy at times. I am a FTM and when I mentioned it to my LOs doctor, she flipped-- I meant like overly flipped the heck out. She was telling me that it is not FDA approved and I should not just give anything to my child to make my life easier. What in the world. All I wanted was for my child to be comfortable.