Need Your Wisdom

Yesterday, I flicked through a magazine and I read that medical cannabis is suitable for treating a variety of medical conditions such as chronic pain, nerve pain, back pain, migraine, arthritis and osteoarthritis. There are many misconceptions about medical cannabis. There are many clinics in Ontario who provides the medical cannabis ( http://apollocannabis.ca/ ) . There are many methods for taking the medical cannabis by oil capsules which could be swallowed, and the dry cannabis could be vaporized, oils, capsules, oils sprays and more. I have read that a 6-year-old is treated medical marijuana in Texas. I was surprised while reading that post. Is it applicable? I'm confused. I would like to know more about this. Kindly share your insight with me.