If this is a medical emergency, please call 911! If you have questions regarding health information, please call Healthline's 24/7 service by dialing 811 to speak to a healthcare professional.
The information found in this guide is not a substitute for professional diagnosis, treatment, or advice. Please consult with your healthcare provider before making any decisions about your health.
NHS Choices. This is a British website, you may find that it uses different words than are used in Canada, and that it discusses programs and services that are not available here.