I HAVE had big splinter in my head 4 a few years xray did not pick it up ,,, the Doctor n ER IN SALISBURY NC SAID IF THERE IS SHUCH A THING IN MY HEAD IT SHOULD WORK IS SELF OUT ,, I'VE HAD NOTTS ON MY NECK BE HIND EARS, I HAVE NIGHT SWEATS HEADACHES FEAVER COLD CHILLS ITS BE ALONG TIME I HAVE A UPPER RESPIRATORY PROBLEM AS WELL