DD (14 months) had pyeloplasty surgery (kidney surgery) Friday early morning. She’s doing great and was discharged Saturday afternoon. She’s eating and acting normal. Saturday night and then tonight at around 11pm (after being asleep about 3 hours), she woke up projectile vomiting. Each night it’s only happened once and she seems fine after. She is on a new antibiotic for her (keflex) but dose was about 12 hours before the throw up. Last night I called the on call urologist and he wasn’t worried, thought maybe residual reaction to the anesthesia, but now it’s happened again. I’ll call her urologist tomorrow but any insight? Can it be an allergy to the antibiotic that long after she takes it?