For full guidance, prescription and follow up take a paid instant consultation. Hope that helps. You can even video consult directly via what sapp on 9999x104x408

How did you come to the diagnosis of cystitis. If it's a previous condition, you may have to be seperately treated for it. As for the myalgia and weakness, you should start isolating yourself and get a Covid rt PCR doen at earliest. A little bit more detail about your pre existing health condition would help us arrive at a more focused diagnosis.

So most likely you are taking some antibiotics Will suggest you to get CoVId test