Ice, ice pops, and cold water are all options. Drinking ice-cold water or sucking on an ice cube or ice pop can help reduce certain tongue ache, particularly soreness caused by dry mouth or burning mouth. Licking the side of your mouth after eating spicy foods or chewing sugar-free gum can also help relieve some of the pain. If you have a severe case of sore tongue, see your dentist. He or she may be able to suggest alternatives to plain old cooling agents. For example, if you're suffering from burning mouth syndrome, your dentist may be able to prescribe you a medication that will help reduce any associated pain or irritation. Ultimately, healing a sore tongue is mostly about finding ways to avoid making it worse in the first place. The best way to do this is by maintaining good oral hygiene and getting sufficient rest and nourishment. If you're struggling with how you should be treating your tongue, ask for help from your dentist or other health care provider. They may have some suggestions for you.