What causes fever after a vaccination?
Patient: my son is 15months old, and got his 15month vaccines on the 19th of March. He s had a fever Monday, Tuesday, Wednesday. Fine on Thursday, Friday, Saturday. His fever came back on Sunday 102.3 and On Monday his fever shot up to 105.1. He also has cold symptoms. His bloodwork shows some abnormal results. Elevated WBC, RBC, Low MCH, Monocytes are also elevated. Neutrophils is also elevated. Chest xray negative. Ears, throat .. negative. Please help. Doctor: Dear parent , I understand your concerns but it seems that your child has developed a mild allergic reaction towards vaccination . allergic reaction requires the administration of an antihistaminic as citrizine once before going to bed until the fever subsides. to relieve the fever you can use acetaminophen or ibuprofen syrup every 8 hours