To relieve tonsillitis symptoms and remove tonsil stones, salt water gargles can be a great way to do it. These hard items can be dislodged by adding a teaspoon of salt to eight ounces warm water. Gargle the salt water for several seconds, then take it out. Avoid swallowing the salt water, as it can cause nausea and vomiting. Gargling saltwater regularly with a straw can help prevent more tonsil stone development in the future.