After a deep cleaning, any discomfort and swelling will usually subside within a few weeks. The time it takes for the symptoms to completely subside depends on the extent of the infection. In addition to following any recommendations by our dentists, you’ll want to rinse with warm salt water to keep your mouth free of bacteria and promote gum healing. In the meantime, you can use over-the-counter pain relievers and ice to help with any discomfort and swelling.