Hellfire OG cannabis strain is perfect for chronic pain, insomnia, depression, mood swings, and chronic stress. Potent strains are a miracle for individuals who deal with chronic medical ailments. Hellfire OG cannabis strain packs a punch when it comes to a host of issues. Above all else, depression and stress are soothed within minutes of taking your first hit, with long-lasting mental relief on the horizon anytime you light up.