EE WAS CUTTING OPEN EMULSION BAGS & PLACING THE MIXTURE IN BLAST HOLES. DURING THIS PROCESS, SOME OF THE EMULSION SPLASHED UP & WENT IN HIS OPEN MOUTH. HE SPIT MOST OF THE MIXTURE OUT EXCEPT F OR ABOUT 1/2 TEASPOON. SHORTLY THEREAFTER, HE GOT NAUSEOUS & COMPLAINED OF A HEADACHE. HE & THE MSDS SHEET WAS SENT TO CLINIC WHERE HE WAS GIVEN A SHOT FOR HIS HEADACHE.