Could someone help me?

Brittney

I’m a new mom and my baby is 5 months old and I feed her some baby applesauce for the first time and she got this rash on her temple (photo below); she’s was fine she didn’t cry or feel uncomfortable; it went away after 10 mins and I feed it to her again 3 hours later it popped up again does anyone know what this is and what I could do about it?