Principle Of Treatment: Laser Rihinitis Therapeutic Apparatus Is Based On Modern Medicine And Clinical Practice Research And Development Of Semiconductor Laser Therapeutic Instrument, The Instrument Adopts The Semiconductor Light Produce Wavelength Of 660 Nm, 8-12 Mw Low Visible Laser Intensity, Irradiation Treatment To The Nasal Cavity, Activate Blood Physiology Features: No Medical Or Chemical Components, Without Pain, Damage Or Stimulation During Treatment Small In Size, Easy To Carry. It Is Very Compact And Portable Pluggable Laser Wire, More Convenience In Use And Easier Maintenance Short Treatment Time, 15 Minutes Each Time. How To Use: 1. Remover The Battery Cover 2. Put 1* 9V Alkaline Battery Into The Battery Box 3. Connect The Wire And The Device, 4. Take Off The Small Pin Cover Before You Use. Put The Rubber Nose Clip Into Nose, Make Sure 2 Light Point Into The Nose About 1 Cm To 1.5 Cm Depth, 5. The Green Light Keep Lighting Shows Working Normal, If It Is Flashing, Shows Operation Failure( Low Batery, Or The Wire Didn't Put In A Correct Way). 6. The Green Light Will Auto-Turn Off After One Treatment