I was putting my bike back in the garage when I stepped on a brown, sticky-like substance in a large bucket that had a similar stench to shoe cleaner. Now my foot feels tingly, numb, and almost as if I have pins and needles (the expression). I washed it, but it continues to feel this way. I was wearing my sandal when I stepped in it so my foot was not protected. Any suggestions to what the substance was and what it may have done to cause my foot to feel this way?