My son got the chicken pox shot 2 days ago. He is 15 months old. Today he has started where he will just sit in the floor and scream, he has been running a fever also. He is not interested in any of his toys and just sits in the floor drinking milk out his sippy. He will eat a little but not a lot. I have given him Tylenol and it hasn't made the fever go down any. Is there anything I can do for him or should I be worried and take him to the doctor.

Alternate Tylenol and Motrin every 3 hours for the fever. It's not uncommon to get some symptoms with this vaccination.