Thanks for your question on Health Care Magic.
I can understand your concern.
No, this is not good sign.
Pneumonia is
acute lung infection. And in children, pneumonia can be sometimes life threatening.
He is taking antibiotics and still he is symptomatic.
So we need to rule out worsening of pneumonia in his case.
And hence repeat chest
x ray is needed.
If x ray is suggestive of decreasing lesions than no need to worry much.
But if lesions on chest x ray are same or worsening than he needs hospital admission and higher antibiotics.
So better to first get done chest x ray to decide future treatment plan.
Hope I have solved your query.
I will be happy to help you further.
Wishing good health to your son.
Thanks.