How common is headache in dengue fever?

Dengue can trigger a strong, persistent headache as the infection affects the body’s immune response. Head pain may be felt across the forehead or around the eyes, and movement can make it more uncomfortable. Headache may occur alongside high temperature, marked tiredness, muscle or joint aches, nausea, or a skin rash.

A headache by itself does not identify dengue. Many infections, dehydration, heat exposure, and other conditions can cause similar pain. The combination of symptoms, recent mosquito exposure or travel, examination findings, and testing helps a clinician decide what is happening. Avoid taking aspirin or ibuprofen unless a clinician specifically advises it, because dengue can increase bleeding risk.

Rest in a cool, comfortable place and take frequent small sips of water or an oral rehydration drink. Keep track of your temperature, fluid intake, urine output, and any new symptoms. Paracetamol may help fever or pain when used exactly as directed on the label or by a clinician; do not exceed the stated dose or combine products that contain it.

Arrange medical advice if dengue is possible, particularly after travel or mosquito exposure in an area where dengue occurs. A clinician can advise whether testing, observation, or follow-up is needed. Use mosquito protection while unwell to reduce the chance of passing the virus to mosquitoes.

Seek urgent medical care for severe abdominal pain, repeated vomiting, bleeding from the nose or gums, blood in vomit or stool, unusual sleepiness, confusion, fainting, breathing difficulty, cold or clammy skin, or very little urine. These warning signs can appear as the fever starts to settle, so continue monitoring even if the temperature improves.

A sudden severe headache, a stiff neck, seizure, new weakness, trouble speaking, or a change in vision also needs emergency assessment. If you cannot keep fluids down or feel increasingly weak, do not wait for the headache to pass.

Ask: Could my headache and fever fit Dengue Fever or another infection? Do I need a blood test or repeat assessment? Which pain reliever is suitable for me? What warning signs should my family watch for, and when should I return?