What should I be expecting after a measles vaccination? My LO has been having high fever of about 39 deg celcius for 3 days. The fever is not coming down. Should I take him back to the doctor?

I think it's time to take your kid to the doctor's. 3 days and so high a fever is not normal. Especially if your LO has taken paracetemol.

39 deg is too high for a vaccination post fever. Could it be a viral fever? Please bring to see a doctor instead

Please seek medical advise. It's most likely something viral. Not just due to the vaccine. Way too high.