Thank you for all the inputs.
Several viral infections can cause fever with rash.
There can be atypical presentation too.
As he was vaccinated & there is no vesicle, chicken pox is unlikely.
Roseola is a possibility.
However, the rise of temperature
again, cough, headache
needs further evaluation.
Small children may not describe their symptom properly.
There can be generalized pain, malaise.
So he may feel pain when hands were put on head.
There can be secondary bacterial infection in the post viral period.
Other viral infections like parvovirus can cause rash in face & other parts of the body.
I would advise to take him to doctor again.
A few tests can be taXXXXX XXXXXke blood count, repeat strep test, chest X ray, if doctor feels necessary.
Please keep him at rest & hydrated.
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