Mango allergy??

Just gave my baby purée mango for the first time today. I didn’t check her cheeks before giving them but while she was eating it seemed like one cheek had a small rash.

Almost like linear rash as if it was scratched if that makes sense. But I don’t think it was there before. Is this a sign of allergy or should I keep feeding her? Will ask her pediatrician today just in case but wanted to see if this happened to anyone else?

She has no other symptoms and is acting fine.