What do you think about a chiropractor manipulating a 7mpnth old baby for esophageal reflux?

Not Much: There is no evidence based studies that support the use of this mode of care. Reflux is a universal issue (can't burp without it) & some are very symptomatic, peaking around 4-5 mo & improving after beginning to sit upright. It is frustrating & chronic & many will offer you something to help. I equate this to burying an owl feather in the backyard during a full moon.