I think I have a parasite in the heel of my hand...itches like craxy and looks yellowish even though the palm tissue is thick and a strange place for an infection..I pricked it with a pin and only clear fluid came out...put neosporin on it and it started to heal, but the little yellow itchy line keeps moving with each effort..its zig zagging down the heal of my palm.. Finally soaked it in hot salt water after this last effort to open it up and then put a wide patch of nail polish over it to suffocate it before it moves much further. Should I go have this looked at or can I get rid of it myself? Got it from a rain soaked chicken/duck pen when I was on my hands and knees installing wire mesh to keep the chicks in....worked past the mired muddy side of the duck pond. Ugh. Thank you for hearing this. Lori