My left butt cheek has been a pain off and on for 2 years...but the last 5 months it s a constant on... Mild in the morning,, the pain increasing as the day goes by, and excruciating at night. It starts right about my cheek bone, and radiates 3-4 inches around. The entire area is hard. I can massage the mass away ( it actually breaks up ) and relieve some of the pain., But it comes back....