Fever since 13 days. How to cure this?

I am having fever since 13 days.it was initially 101-102 for 3 to 4 days after which it was constant from 100- 100.5 and sometimes reached 101 in the rest of the days. I have a lot of cough in my chest and and it has been decreasing with each passing day but still I have cough in my chest. I took azithral 500 2 tablets and switch CV antibiotics for 10 days after which I am taking loxof 500 since past 3 days. My dengue typhoid malaria test have come negative. My fasting sugar is 106 my ESR level is 50 my platelet count is 150000.initially I was having fever after every 6 hours then it has been recurring every 8 hours after which it has been recurring every 12 hours as of now.but still I am constantly having fever after every 11 to 12 hours which is usually 100-100.5 in which I am taking calpol 650. After taking calpol 650 the fever subsides within half an hour to one hour. There was even body pain and slight loss of taste and smell but now is ok. how to cure this?