Hello, Welcome to HCM, The history and symptoms suggests me that you may be having some viral infection as your husband too had these constitutional symptoms. The history of coughing and bad sore throat with generalized malaise are indicative of viral infection. If the place which you have visited is endemic to malaria you need to test for malaria but by the symptoms it does not look like a malaria. As your doctor has prescribed some medicine the symptoms will come down and improves the condition. In addition to the above treatment you can take oral NSAIDs to relieve the generalized malaise. Thank you.