The bumps on your tongue can sometimes be felt under the tongue too. The reasons include caused due to a mouth injury, salivary stones, and others. Most bumps resolve on their known within a few days and don't need outside help.  Most bumps can be healed by making some dietary changes such as avoiding outside or spicy food and avoiding drinking. Just rely on healthy food, which can help you heal faster. Rinse your mouth with warm salt water for a few minutes. If the issue doesn't resolve itself within 10 days, then there's a need to visit your doctor and get the correct diagnosis to start the treatment right away.