Cough and vomit. What can be done.

Hii doctors, My brother is having cough and vomit since 1 month 10 days. I am attaching his ultrasound and X-ray report. Most of the time when he coughs he vomits also. He has cough generally 1 or 2 times a day ( lasting rarely 3-5 minutes). And when he start coughing suddenly he vomits ( first whitish cough and then yellow vomit ). He is taking medicine also. Contacted surgeon as well as physician but nothing is happening. He had severe illness ( malaria , not sure as it was positive "PF" for one day and other day negative. ) a month ago but all symptoms( fever , extreme weakness)are gone. Please give your precious time in analyzing his case and provide what can be done. Thank you!