I have had a fever for 15 days. I consulted three doctors and took medicines, but there is no improvement. The fever comes and goes without a fixed pattern, sometimes with chills at night. I also have headache, weakness, and poor appetite. Please suggest which blood tests I should do and what treatment I should take.
Since you have had a fever for 15 days with chills, headache, weakness, and poor appetite, this is considered a prolonged fever and needs proper evaluation to find the exact cause. You should avoid changing medicines on your own and instead consult a physician with all your previous reports. Your doctor may advise tests such as Complete Blood Count (CBC), malaria test, dengue test, typhoid test, ESR/CRP, and blood culture to identify the cause. Stay well hydrated and take adequate rest, as persistent fever should not be ignored and may require specific treatment once the diagnosis is confirmed.