Spondylolysis Is The Defect Between Joints Of Vertebrae And Characterized By Pain. Main Cause Of Spondylolysis Is Stress Or Constant Over Stretching Of Spine. This Defect Can Lead To Stress Fractures (Breaks) In The Vertebrae That Can Weaken The Bones So Much That One Slips Out Of Place, A Condition Called Spondylolisthesis. Treatment Of Spondylolysis Includes Medication, Physical Therapy, Exercise Or Collar And Back Supports May Be Used. Therapies Will Help To Increase Pain-Free Movement, Improve Flexibility And Muscle Strength. Air Vents Are Provided For Air Flow And To Avoid Irritation. It Can Be Used As Preventive Care Of Neck During Work, Travel, Watching Tv Or Reading. It Is Also Used For Sprains, Strains And Whiplash. Provide Soft To Rigid Support To Limit Movement Or Help Prevent Harmful Neck Motions. Flamingo Cervical Collar Gives You A Great Relief.