In response to your paediatrician that said if 10mg didn't help higher wouldn't. Omperazole only helped my daughter when she went to 18mg at 6kg.
Once she got to 6.5kg at 5.5 months she was on 20mg until she was 2. It was ok until she was over 10kg when it stopped working, it was weight adjusted at 2mg/kg but was minimally effective. Once she was 3 it could be increased to 40mg a day and it was effective again. She's 15kg so it's about 2.5 mg/kg now.
Yes it trashed my mental and physical health. I had severe treatment resistant depression and pyschosis and spent 10 weeks in a mother and baby unit when she was 10 months old. It took until she was 2 to recover from it and earlier this year I had some counselling with my HV to help me process those first years and coping as a parent with needs (I'm bipolar) with a child with needs.
They don't know why she still has it. There are tests they could run but they would involve a general anaesthetic and at the moment they don't believe the risk is worth it. The outcome of the tests is likely she needs reflux treatment. They are treating reflux so it won't add anything at the moment.
My daughters allergies are delayed this means they don't show up on testing. They are only diagnosed with careful removal and reintroductions to see if symptoms return. The only allergies that show up on tests are immediate allergies that cause more classical allergy symptoms such as itching, hives, swelling and anaphylaxis. The symptoms of delayed allergies are more gut based.
If she doesn't outgrow her allergies in the next year it will become less likely that she will outgrow them. I have a strong history of food intolerances, I have a histamine intolerance, my mum and sister have dairy intolerances. My sister was failure to thrive due to severe projectile vomiting, likely to have been cmpa in hindsight. My mum has severe reflux which doesn't respond to medication and has required surgery to manage. My mil also has reflux.
It takes a lot of pushing to advocate for her needs. She has a cavity due to a bad reflux flare up last summer. She went back to waking every 40 minutes only sleeping whilst being held. Refluxing most of the night. It took 5 months to get it back under control and it was only when her omperazole went from 25 to 40mg that we got respite.
My daughter does need high doses of omperazole. That's not to say that your child will need it, I have just put my daughters situation to demonstrate that the dose can absolutely make a huge difference in the benefit of the medication. Go into the next appointments armed with information. Going higher than 10mg might not help but ask if it's worth trying anyway just in case. Lansoprazole is another reflux med in the same class as omperazole that can be given to infants. It might be worth asking about that.
@boulevardofbrokendreamss domperidone can still be prescribed but it's no longer licenced for under 12s so can only be prescribed to infants and young children by paediatricians and only when other treatments haven't been effective. My daughter is 4 and has been on it since 8 months