I'm sorry to hear that your fever has persisted for three days despite taking Dolo-650 (paracetamol). Persistent fever can indicate an underlying infection or other health issue that needs further evaluation.

Here are some important steps you should take:

• Monitor your symptoms closely: Note if you develop additional symptoms such as difficulty breathing, chest pain, severe headache, rash, persistent vomiting, or confusion.
• Stay hydrated: Drink plenty of fluids like water, herbal teas, or fresh fruit juices to prevent dehydration.
• Rest adequately: Give your body time to recover.
• Avoid self-medicating further: Do not increase the dose or frequency of Dolo-650 without medical advice.
• Seek medical evaluation promptly: Since the fever has lasted more than 3 days and is not responding to over-the-counter medication, it is important to consult a physician. They may need to perform a physical examination, order blood tests, or other investigations to identify the cause and recommend appropriate treatment.

If your fever worsens or you experience any alarming symptoms, please seek emergency care immediately.

In summary, please consult a general physician or an internal medicine specialist as soon as possible for a thorough assessment and appropriate management.To narrow down potential causes, we will need some more information.Please tell me your age and gender.