I'm so sorry to hear that your little one is suffering. Below, I listed some of the things we did to ease my daughter’s reflux symptoms.
elevated the head of her crib
fed her small amounts at a time at more frequent intervals, some days it seemed like all I did was feed her
fed her in an upright position
diligently burped her
Kept her upright after feedings, she frequently napped in her stroller (without the carrier)
limited time in car seat
often, when she was inconsolable, the best thing I could do for her was place her on her back on her diaper changer pad - I don't know why but that seemed to soothe her
little tummies - gas x for babies
changed bottles - significantly less spitting up with VentAire http://www.playtexbaby.com/Products/Bottles/VentAire.aspx
never warmed her bottles, room temp or cold right out of fridge
ran humidifier when she slept - she was always congested from the spit up
carried her in her Ergo*
swaddled her for bed time and when colicky
when I knew she was hungry but she arched her back and screamed, I just kept offering the bottle (while walking, swaying, singing) until she'd finally take it
I spent some time on www.reflux.org and found some of the information helpful. Unfortunately, the page is not very user friendly and is full of ads. However, you can talk to a volunteer via email or telephone. That was helpful for me because I felt like I finally found someone compassionate and empathetic with some helpful advice.
Once my daughter was prescribed acid suppressers, she only occasionally experienced her reflux symptoms (for example, spending too much time in her car seat). She was on acid suppressers until a little after her second birthday but has been nearly symptom free since. We limit but have not entirely avoided greasy and acidic foods. Oranges are her favorite fruit and she loves Chick-fil-a.
Hope this helps.
I pray that your child quickly outgrows reflux and that God will grant your family peace and rest during this struggle.
*I received an Ergo (without the infant insert) when my daughter was almost 4 months old. My daughter turned 3 in November, and I still use it. It is one of the best gifts I have ever received. http://www.ergobabycarriers.com
You may find other helpful responses under the following mamasource posts:
Sun. Feb. 15, 2009, S. R: Help for friend's baby with Reflux!!!!
Sat. Feb. 21, 2009, Jenny M: Silent Acid Reflux