When your throat feels sore and overused, there are a few tricks you can do to find relief which involve Gargling with a mixture of 8 ounces warm water and 1/4 to 1/2 teaspoon of salt. You can also suck on a throat lozenge, drink warm liquids, such as tea with honey and turn on a cool-mist humidifier to add moisture to the air. This will help you care for your throat so that it will open up more when you sing and not be constricted. There are also other tricks that can help you open your throat up when you sing which include breathing Into your ribs, dropping your jaw and bringing your chest up.