I have a 4 month old baby who has had a slite case of reflux since birth.. i have been told by her ped. to?

space out her feedings, cut back on how much i give her which is now 4 oz every 4 hours.. and ive been mixing rice and cereal with every feeding and he has even put her on axid. none of this is helping. shes gaining weight great so theres probably no need to worry but im a mother and thats what we do..my problem is now she spits up so much about 2 hours after a feeding that she starts spitting up clear liquids...anyone else have this problem...or any solution