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What causes dizziness and blackout with swollen throat?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hello doctor,

For a couple of days now, I have been ill, and the symptoms are getting worse. First, it started off with a swollen throat (which I still have, but it is not as bad), which gives me a phlegm cough, but it has reduced. I constantly have dizziness and blackouts with pulsating sensations not only going through my head, but sometimes my body too. I am finding it very difficult to concentrate on anything, and bright lights hurt my head too.

Kindly advise.

Hi,

Welcome to icliniq.com.

I understand your concern.

Based on the descriptive history, I conclude that it started as a viral infection (sore throat) and has progressed to a secondary bacterial infection, which has manifested as a cough with phlegm. Due to phlegm accumulation in your sinuses, you are experiencing strange sensations in your head. I would advise you to use saline gargles (lukewarm water with a pinch of salt) and Betadine sore-throat gargles alternately until your throat clears.

Try swallowing a tablespoon of honey twice a day to soothe your throat. Start a course of Azithromycin antibiotic as it is the best suited for such respiratory infection, and you will only have to take three tablets in a total of 500 mg once a day for three days. And start an expectorant cough syrup which has Guaphenisin in the contents, take 10 ml each thrice a day, it will relieve you of the phlegm.

I hope this helps you.

Thank you.

Medically reviewed byiCliniq medical review team

Published At November 19, 2017
Reviewed AtMarch 23, 2026

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