HEALTHY and FITNESS Amazing Health Benefits Of Doing Salt Water Gargle Gargling with warm salt water is a time-tested home remedy for all types of problems in your mouth and throat, and it always works wonders and is easy to use on the go. Every time you suffer from a sore throat or cold or sinus infection, you have advised saltwater gargles for relief. Saltwater gargles are also useful when you are having allergies and other health imbalances. A regular gargle gives relief from certain infections and prevents them from getting worse. Furthermore, preparing for a saltwater gargle is very simple, all you need is warm water and salt and in no time you're done. This is an age-old remedy for a number of oral health issues. As per United States Pharmacopeia (USP), a 0.9% salt water solution (normal saline) has used for cleansing of wounds.