Medical marijuana has the ability to help reduce inflammation and regulate the immune system. People with psoriasis for example have keratinocytes that aren’t doing their job properly. Keratinocytes are found in the immune system and prevent toxins from entering our body. They also keep moisture in the body which is why, if they aren’t doing their job, psoriasis sufferers have very dry, flaky, inflamed, painful skin. Medical marijuana can send signals to your cells to reduce inflammation, and even slow cell growth (as people with psoriasis may produce skin cells too quickly), and reduce itching and discomfort.