Hello doctor , My bro in law had high fever, cold and body pain, we got Covid test done for both him and sister and fortunately, the result was negative. However, my sister shows the symptom of cough, body pain and headache( we are assuming it's coz of nasal test) . We have been giving her Dolo 650, zibtromicine tablet and she complaints stomach buring .. we want to know next steps. Should we get tested again? Thank you in advance