Fortunately, most people with a lisp can be successfully treated with speech therapy. Speech therapy aims to help the individual learn how to produce speech sounds correctly. This usually involves exercises that help the person become aware of their tongue movements and mouth position when producing specific sounds. There is no one-size-fits-all answer to this question, as the best way to get rid of your lisp may vary depending on your specific situation. However, some tips on how to get rid of your lisp may include: learning how to speak more clearly, practicing compensating for your lisp with speech therapy, and using a speech synthesizer to help you improve your speech.