What are the symptoms of infectious disease and how can I address them?

It depends. It depends on the infectious disease you have. If hiv, you can have no symptoms to feeling weak with pneumonia, fever, and many other symptoms of opportumistic infections, including several GI symptoms. If you have tb, you have mainly respiratory symptoms. The best way to treat them is to treat the underlying illness, like strep throat. The symptoms usually go away and the illness is cured.