Betadine gargle can help reduce throat irritation, but it should be diluted properly to avoid dryness and burning; instead of mixing 10 ml (about 2 teaspoons) with just half a glass of water, you should dilute the same 2 teaspoons in a full glass of warm water before gargling, as this reduces irritation while still being effective. You can use it 2–3 times a day.
Next Steps
If you still feel significant burning or dryness, it is better to stop and switch to warm salt water gargles (½ teaspoon salt in a glass of warm water)
Plenty of fluids,steam inhalation, and take rest
Health Tips
if your cough and cold persist beyond 10–14 days, or if you develop fever, throat swelling, or breathing difficulty, please consult a doctor for further evaluation