This lump appeared overnight, not really sure what it was, we tried the tens pads and they helped, then we tried the knee pads and these were better, after 8 sessions it had 98% gone, its incredible, we just used arthritis rheumatism as that’s what i thought it was, we have used the Xpro generator and XM generator with Tens/Knee pads, and finally tried the Cold Laser Wrist, and this feels to be the best for my knee. Trying on my locked up elbow too see if it can help there. From the photo this is before and after 8 sessions of mixed equipment.