A study from the University of Michigan from March 2016 and published in the Journal of Pain showed that marijuana:
1.Improved quality of life.
2.Reduced opioid usage by an average of 64 percent.
3.Decreased side effects of other medications.
Cannabis can help treat:
General non-specific chronic pain — for example, cancer pain or chronic neuropathic pain
Low back pain
Osteoarthritis
Rheumatoid arthritis
TMJ disorder
Headaches
Fibromyalgia
Irritable bowel syndrome
Chronic fatigue syndrome
Neck pain
HIV/AIDS-related pain
Multiple Sclerosis
Central nervous system issues
Accident and injury-related pain
Sciatica
In many states now, chronic pain is a qualifying medical condition, allowing you to be treated by medical marijuana.

Many patients with chronic or severe pain enjoy smoking or vaporizing their cannabis supply when possible. Since these intake methods provide a more rapid effect in the body, they offer a quick way to experience relief. If the ability to minimize discomfort rapidly is vital to your treatment, consider discussing this intake method with your physician in greater depth. Cannabis can also be ingested via capsules, tablets, tinctures and edibles. For localized pain treatment, consider using a topical, such as an ointment or cream, instead. You’ll experience targeted pain relief in the specific portion of your body where pain is occurring.