Near infrared light has been proved effectively to ease infective inflammations and relieve pains for muscular pains and stiff. Multifunctional Infrared Light Therapy Instrument Lifowave-9350 Broad Applications:lInternal medicine: Acute and chronic inflammations including bronchitis, pneumonia, gastritis, gastric and duodenal ulcers, enteritis, intestinal cramps, diarrhea, dysentery, nephritis, ...