I have found allergies can just happen , not allergic to anything then show sensitivity . My first thought was allergy to the cold ( with the freezie, but wouldn't explain the gushers ) I mix apple juice and water for Popsicles , although 3 yr old dcb told me today my snacks aren't fun ! Lol , I think I have been focused on healthy I haven't really thought about how kids view snacks . I'm thinking maybe it's their way of controlling your snacks as a two yr old could get a rash numerous ways ! Slobbering , licking lips ect ,