Blood in cough after viral fever is most commonly from inflamed bronchial airways (bronchitis) â not dangerous on its own. Normal ESR makes TB less likely. However, hemoptysis always needs proper evaluation. Get a CT chest done if X-ray didn't show a clear cause. Avoid straining/hard coughing, and if blood increases or fever returns, seek urgent care.
Next Steps
Consult me on Practo with your X-ray report for further guidance.