Gas drops vs gripe waters

My baby is a month old and is exclusively breastfed . I noticed the past 2 weeks she’s been spitting up a lot. Some feedings she doesn’t spit up at all, some she spits up ALOT, some a little . I make sure each feeding after i feed her i keep her upright and pat/ rub her back to get her to burp . Sometimes before i can even get a burp out of her she spit up . I just started her on gripe water, and she’s still been spitting up the same amount . I just started it yesterday morning so I’m not sure if it’s something that works right away or takes time . Doctor said sometimes gas drops can work of gripe water doesn’t . Which one works better in your opinions ?