Hello, I can understand your concern. As your daughter is three years old, this is the age she might be getting lots of baby teeth in her mouth. Due to this new development, it is normal that kids at this age stick their tongue out often and also experience excessive salivation. It will stop as soon as all teeth will develop, her mouth will grow and she will get accustomed to teeth in mouth. As your daughter is already under speech and language therapist, you can wait for their assessment as sometimes kids develop speech later but there is nothing abnormal about it. In addition, you can get her tongue checked by the dentist for any long frenulum that may tie the tongue and not let it move freely to talk. If the tongue is normal, her hearing is fine and the speech therapist passes her as fine, then there is nothing to worry about and you should wait for her to develop speech and language. I hope this information helps you. Thank you for choosing HCM. Take care. Best, Dr. Viraj Shah