Hi, My Dad, aged 62, height 5'7'', weight 70 Kgs is having fever with headache almost every evening from last 30-40 days. Got Blood, Malaria, sugar, urine tests done but all negative.
Visited many doctors, but till the time medicine is continued fever is not there but will again come as soon as stopped medicine. And the fever is 100-102 C. First headache will occur followed by high fever but only in evening/night. Recently we saw ENT Specialist and he gave some medicines for throat infection. Now again when he stopped medicines, fever is there 102 C. No clue what to do. Could you suggest something ?