I hv tb. I am undergoing tb medications. 5 months hv been completed now its last month of my treatment for for 2 days I am having sore throat a little bit of cough n now I checked on thermometer its 98.3. My doctor is not here he said to wait for a day and take syp asthakind dx my question is what if a tb patient catches cold 19 can he or she be treated? Can he or she become healthy again. Could it be lethal?