Formula help

Me

My little one has been on formula since week 3. We were giving her Similac pro-advance and she was fine until about week 8-9. She was SUPER fussy, gassy, spitting up a ton. She developed a rash on her face which my research led me to believe she had cows protein allergy. So, we switched week 9-10 to Nutrimagen. She was doing great until the last few days. Spitting up at every feeding, still a tad fussy and the rash is back (we are seeing the pediatrician tmr for this rash). Is it completely normal to be spitting up after every feeding? Should we look into switching again to something else?? Anyone go thru this that has advice?