(Covid test) Suggest what to be done?

My mother had once sharp pain in chest in the morning and the next morning she got high fever Headache, lower back pain, Bitterness, And legs pain, On 25th of April... Doctor gave cefix tablet and gasteric syrup vitmin c, and osr... Fever was Low for sometime but fever came at night of the next day and back lower pain got cured and fever did not Become normal... After few days Doctor said to do Blood test, Report came - just (absolute indices) mch - was 26.6pg. ESR - 27mm/1sthr... And urine report - albumin - traces were found and epithelial cells - 6-8/hpf.. Doctor said it's normal Do Covid test... Confused What has to be done now ??? Fever is not becoming normal frequently it's coming... Can anyone suggest what to be done ?