Speech-language pathologists can earn the Certificate of Clinical Competence in Speech-Language Pathology (CCC-SLP), offered by the American Speech-Language-Hearing Association. Certification satisfies some or all of the requirements for state licensure and may be required by some employers.
The effect of lavender on sleep has also been studied. The inhaling of lavender odour during sleep has been observed to reduce the respiration frequency (you breathe in and out less), which is commonly used as an indicator of relaxation and sleep depth.
Some people use lavender for painful conditions including migraine headaches, toothaches, sprains, nerve pain, sores, and joint pain. It is also used for acne and cancer, and to promote menstruation. Lavender is applied to the skin for hair loss (alopecia areata) and pain, and to repel mosquitoes and other insects. Early research suggests that applying a combination of lavender and tea tree oil to the skin helps kill lice eggs and reduce the number of live lice. 2  It is unclear if the effects are caused by lavender alone or the combination of lavender and tea tree oil. 3  Migraine.