need help with formula

ma

so baby was on Enfamil AR for his reflux. wasn’t helping so doc changed him to nutramigen & prescribed zantac & gas drops. still isn’t working except now seems worse bc he’s breaking out with a rash around his eyes & cheeks. i no longer know what to do. he’s in pain a lot. i keep him up right after feeding & even burp after every ounce but he’ll spit up every time everywhere then 25 mins later he’ll cry & u can hear lots of gas.