Therapeutic apparatus comprises a pair of earpieces 10 joined by a band 12 to fit on a patient's head. Each earpiece 10 is provided with an inwardly directed light source 14 comprising a plurality of light emitting diodes (LEDs) powered from an electrical mains supply by way of a combined plug and transformer 16, a cable 18 and a control box 20. The control box 20 comprises a switch 22 whereby the dc power to the light sources 14 is turned on to irradiate the patient's outer ears with radiation of a selected wavelength and a rotary control 24 for adjusting the length of time it is on. The light source is pulsed at about 5KHz.
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