I think we found another one!

Pacen ended up having 3 bouts of diarrhea in less than two hours, plus hives from eating about 1/2 tablespoon of hummus on a corn tortilla. These pics were taken 2 hours after he started breaking out and after a bath, it was probably double before his bath. His whole chin was bright red until it was cleaned with soap and water as well. We are thinking its the sesame (tahini) in the hummus. This was also the 3rd time he has eaten hummus with no reactions prior.

UPDATE: That whole night he was up several times with belly aches. His belly was so distended it was hard as a rock. He only had a couple hives once he woke up the next morning, but definitely something we need to keep out of his system.