Brief Answer:
You may wait.

Detailed Answer:

Hi,

According to your description, you have fever for the last 3 days along with cold and headache. What other symptoms do you have? Do you have body pain, weakness, burning sensation while passing urine, sorethroat, vomiting, loose stools and so on? Let me know if you have any of these or other symptoms.

Commonly this type of symptoms are due to viral illness which will resolve in 3-5 days. I would wait for couple of days more before ordering blood test. If symptoms persists, you may need tests and further treatment. For now continue paracetamol tablets. Antihistamines like levocetrizine 5mg can be used to treat cold. Drink plenty of fluids and rest adequately.

Hope this helps. Follow up with further information and other questions that you may have.
Regards

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Brief Answer:
Viral infection

Detailed Answer:

Hi,

The symptoms are consistent of viral infection. My above suggestions holds good. Consider taking symptomatic medications as mentioned earlier. If symptoms persists for more than 5 days, you might need blood tests.

Hope this helps. Let me know if you need any more information.
Regards

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Brief Answer:
Test may or may not be needed

Detailed Answer:

Hi,

More likely you will get better in the next couple of days. But as I mentioned if fever persists beyond 5 days, I would order a complete blood count with platelets and Widal as the initial set of test. If deemed necessary other tests including Dengue serology, urine test and ESR could be ordered. Your treating doctor will know about it.

Hope this helps. Let me know if you need any more information.
Regards

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