Yes, it has occured to me for the second time now. There was a lapse after receiving a second dose of Ivermectin and being reassured that the first specialist hadn't given me enough when I began to trust the medical community again, but a year later and there's been no improvement. I can also now see from the comments on here that everyone has hit the same brick wall with the doctors and been forced to pursue their own treatment. I've read so many different suggestions and conflicting opinions on the drugs. Thank goodness there is at least this forum for support.