My son had reflux from around 2weeks old till 6mths old, he grew out of it slowly - and after 2mths on medication, he is almost better.
He still has thickener in his bottles now, and hes nearly 10mths - we've tried cutting out the thickener but as soon as we do, he starts chucking again so obviously the reflux is there a little still.
We found burping him a few times during a feed helped alot, and also small but frequent feeds.. my son was having only around 100mls every 2 - 3hrs, if he drank anymore he would suffer a couple of hours later. It is hard over night as hes still hungry every few hours. Even now he never drinks more than 130 or 150 at a time..by his choice obviously! and is s till feeding frequently.
Since he started solids at 6mths he got alot better, but we found to begin with some foods would set the reflux off. If he has something 'fatty' now he seems to suffer a bit.
When he was younger, and had really bad episodes of the reflux we found Mylanta worked fantastic! we only used 1ml .. this was suggested by our Dr by the way. And it worked within 5mins or so to calm his tummy.
We used to sleep him on a pillow in his cot also, by using a single sheet over the top of the pillow, tucked right under the matress to hold the pillow in place. He slept alot better not laying down flat.
Good luck with everything!!
Kristie, mum to Blake(23mths) & Joshua(1mth)