After a possible dengue mosquito bite

The bite may look like an ordinary itchy bump, and appearance cannot show whether the mosquito carried dengue virus. There is no useful treatment taken simply because a bite occurred; attention shifts to symptom monitoring and bite prevention.

Dengue fever may present with fever, strong headache, pain behind the eyes, muscle or joint aches, nausea, rash, or unusual tiredness. These symptoms overlap with other infections, so clinical assessment considers the whole pattern and exposure history.

An itchy spot immediately after a bite is a local skin reaction, not evidence of dengue. Avoid scratching, wash the area, and use a cool compress. Spreading redness, increasing warmth, pus, or facial swelling points to a separate bite reaction or skin problem that may need care.

Use repellent as directed, cover exposed skin, and keep windows or doors screened where practical. Remove standing water from containers around the home. These measures reduce additional bites and help limit mosquito exposure for others.

If fever or a dengue-like illness develops, rest, drink fluids, and arrange medical advice. Paracetamol may be used as directed. Avoid aspirin and anti-inflammatory medicines such as ibuprofen until dengue has been excluded or a clinician approves them, because bleeding can be a concern in dengue.

Seek medical assessment for fever with marked headache, body aches, rash, vomiting, bleeding, or worsening weakness, particularly after time in a place where dengue is circulating. Tell the clinician where you were and when symptoms began.

Go urgently for severe abdominal pain, repeated vomiting, blood in vomit, black stools, fainting, confusion, breathing difficulty, cold clammy skin, or greatly reduced urine. Urgency comes from these red flags, not from how the bite looks.

Be ready to describe travel or local exposure, symptom onset, temperature changes, fluid intake, urination, bleeding, and medicines already taken. Ask whether testing is appropriate now or whether monitoring and a later review would be more informative.