Betadine mouthwash and gargle are known to be effective in relieving sore throat by destroying 99.9% of bacteria, viruses, and fungi that cause common cold and other infections. Additionally, it can be used to treat inflammatory diseases like stomatitis, gingivitis, aphthous ulcers, tonsillitis, monilial infections, colds, and influenza.

The antiviral properties of Betadine make it useful in maintaining oropharyngeal hygiene, especially when one is exposed to respiratory viruses. However, certain precautions need to be taken, such as avoiding prolonged use on large skin areas, checking for signs of potential hyperthyroidism after treatment, and being careful when using it on broken skin in patients with preexisting renal insufficiency.

If any local discomfort or sensitivity is experienced, the use of Betadine should be discontinued immediately. It should only be used as a gargle or mouthwash and kept out of the reach of children.

While rare, hypersensitive skin reactions and involvement of other organs may occur. If any reaction is noticed, it is important to consult with a doctor immediately.