Can you get pimples in your mouth?

Yes, it is possible to get pimples in your mouth. While they are not as common as pimples on the skin, oral pimples, also known as canker sores or aphthous ulcers, can occur inside the mouth. They are small, painful sores that can appear on the inside of your lips, cheeks, gums, or tongue. Canker sores are usually harmless and go away on their own within a few weeks, but they can be uncomfortable and make eating and talking difficult.