Dry Cough , weakness , fever etc.

My dad has been very sick and weak lately . Last march he started having fever but due to lockdown we couldn't do any check properly, when there were less restrictions we did typhoid test which he was positive for it . He kept having fever and  weakness plus loss of appetite increase . We gave him some medicine for the typhoid and he felt good. After a week or so, he started having dry cough with fever and constant weakness . Cough so bad that he gets chest pain and face breathing issues after coughing . The cough issues is past 4 weeks now . His Detroit health and loss of appetite is a big concern . We took him recently to a liver specialist and he said it's nothing related to liver as we thought it could be because he was an alcoholic . Any suggestions or help would be appreciated, or is it tuberculosis ? I tried to reached some doctors but it's not possible to take him to hospital currently due to some personal reasons.