General Guidelines Ensure that treatment is not contraindicated (see manual) and that appropriate eye protection is worn. Treating the lymphatic system is a useful adjunct to several applications, notably wound healing and when addressing oedema. Application Guidelines 660nm: Treat over relevant lymph nodes at settings below. Probe Time per Point Dose per Point Pulse Range 660nm 50mW 1 minute 6 J/cm2 10 Hz Frequency of treatment Dependent upon particular condition being treated.