my father is 78 years and was a chain smoker for 30 yrs but had left smoking since the last 15yrs. 25 days back he had fever so ou GP treated him for malaria and gave him larigo . the fever subsided but after 5 days it was back and it is between 100-102 C . He has cough too. So CBC and x-ray of lung was done . both the reports were normal. the urine report showed trces of occult blood and 1-2 pus cells. Hence urine culture was advised. the report is awaited. But his cough has not stopped and now everytime he coughs he vomits all that he has eaten. He is not taking any food fearing that he will vomit out. he is been told to take Domstal but still he vomits. he continues to get fever even now.Please advise further treatment line and any conclusions till now.