Susu formula

Hello mommy, sy nak mnta pndapat mommies, anak sy minum susu similac inte-p, berak okay, tkda mslah kmbung, berat naik normal tpi muka dan telinga naik ruam. Ruam on off skjp ada skjp hilang. Skrg tgh fikir nk tukar susu formula brand lain tpi tk thu nk guna yg mna. Jnis mna yg ssuai yaa