In general, a laser treatment is not painful. You may fell a small warm sensation or tingling in the area being treated, but you should not feel any pain.
During each painless treatment laser energy increases circulation, drawing water, oxygen and nutrients to the damaged area. This creates and optimal healing environment that reduces inflammation, swelling, muscle spasms, stiffness, and pain. As the injured area returns to normal, function is restored and the original pain you came in for is relieved.
For more information regarding the laser please go to http://www.litecure.com/medical/for-patients/safety-efficacy/.