We have a lot of allergies in my family, so I was very careful introducing foods to DS.
DH and I both react to bananas so I didn't give any to DS until he was over 12mo!
If baby has a skin reaction I'd avoid giving that food again until after 12mo, because repeated exposure will just increase his reaction
He will likely tolerate it better after he's a year old. We also introduced foods carefully and slowly and so far DS has not reacted to anything other than cows milk protein (which he has been intolerant to from birth). I deliberately avoided any of the known family allergens until post 12mo, and I still haven't given him peanuts, as my Mum reacts badly to those!