Infant hiccups

What do you do if your infant hiccups? Do you just let them be? My MIL insists that I dab water on my LO’s lips to help alleviate the hiccup. But I understand no water for them until 6 months old. Is that ok? Any other mommy tips? My LO hiccups almost after every feed, regardless direct latch / bottle feed EBM. I hope the hiccup doesn’t bother her...