My kids both had that. You poor thing the reflux is really awful. :(
We avoided all the main allergens: wheat, egg, soy {check this a lot with protein dairy allergies are also allergic to soy}, meat {since it was a protein allergy} until one year.
The reason for that is because usually testing is not conclusive until after one, so it's a conservative call but safer just to leave them out.
Do you have an older child/ren? If not the first one is relatively easy actually as they don't know any different IYKWIM.
Rice and oats are good safe foods, so once you more onto textures, mine liked things like as bridging foods from purees:
- risottos. I made mine with pudding rice to start, so a nice soft texture, and added things like peas or mushrooms. Also use vegetable stock to cook it in.
- porridge. oats are good for carbs. I cooked them in rice milk, and added dairy and soy free marg {Pure brand from supermarkets is good}, cinnamon and mashed apple for flavour.
Have a look for subsitutes:
- Pure {brand} marg, I mentioned above to replace any butter
Rice milk, for milk {for cooking, it doesn't have enough iron as their main milk source.
- Is he on Neocate? If not ask about it, it's a hyrodised formula which removes all the protein. I did breast feed as well, by removing all dairy from my own diet. You can cook with Neocate if he is on it using in place of milk. Neocate have a whole cook book, look up their web site
- coconut cream for sweet things
- potato and rice for carbs. You can even make cake with mashed potato!
- egg replacer for eggs
Loads of recipes on line so don't despair, it takes a lot of thinking and cooking from scratch {as most things will have traces of one of those in them}, but actually once you get your head around it it's not hard.
The only thing I really struggled with was cheese {since mine couldn't have soy, if you can there are good soy cheese substitutes}.