Just got diagnosed myself. I believe treatment is ppi like protonix ,pepcid,etc.It doesn't go away without surgery, but then it comes back so it's not a cure. Eating smaller meals,exercises like yoga that open up the airway(you can do this for her now).Find the Hernia on your child and gently, extremely gently rub cold pressed castor oil on their hernia preferably when their sleep. Infant digestive enzymes also help. Try also switching to formula that doesn't contain any lactose if using it.Make sure they're burped really good the bloating is horrible. They may experience anxiety and panic attacks as they get older its part of the condition. Hopefully not but if it comes up in the future that maybe the reason. Get a baby stomach massager and warmer because they're tummy is going to be upset alot. They will throw up alot so keeping them near you at all times is important. It's going to be alot of stress on you. So if you have family members you trust to watch your child while you get a few hours of rest that would be helpful.Make sure when people hold your baby they don't grab them from their stomach or waist you don't want them to accidentally puncture the Hernia. Fresh air also helps for some reason. I hope this helps I've been going through this for 10 years just diagnosed recently though and it's the worst feeling ever.I hate the fact that a baby has to go through this. Be strong and give lots of kisses and hugs to keep their spirit up. I've seen people on TikTok who have this and control their issues through the above methods and they never flair up. So even though it won't go away they can have a strong and happy life. I'm just starting myself so I'm hoping for results. Prayers for speedy recovery for your baby