 [ Symptoms ] how long after being hit in tmj area should pain be sharp when touching it and opening mouth  was in head to head collision and got hit right on tmj area extreme tenderness to area and sharp pain when open mouth wide no other symptoms could it just be bruised or should i have it checked out [ Disease ] hi low immunity associated with chronic sinusitis is more likely take healthy nutritious diet especially rich in vitamin c and proteins deep breathing exercises will be helpful thanks