discomfort after using few days [SEP] bought these slippers for inside home use the spikes on the sandals are great and gave good massage to the foot i have used them for about a week now and here is my experience the middle of the sandal where there is a bump is causing discomfort and pain to my footthis made me returning these slippers as these are causing more pain as i use them more these slippers may not be for everyone and depends on the foot