concerned about rash

FOR THE PAST TWO DAYS I HAVE HAD WHAT I THOUGHT WAS POISON IVY BUT IM NOT FOR SURE.
I WENT HUNTING OUT IN AN OPEN FIELD BUT TO MY KNOWLEDGE I DIDNT SEE ANYTHING THAT SEEMED TO BE POISON IVY . I WAS DIGGING AROUND IN A BIG BUSH WITH MY ARMS AND THE BUSH DID TOUCH MY FACE AND THAT IS WHERE I HAVE THE RASH. THE RASH STARTED ON MY FACE AROUND MY CHEEKS AND IT HAD SMALL LITLLE WHITEHEADS ON THE SPOTS. THEIR WAS QUITE A FEW OF THEM. NOW I HAVE THESE SAME LITTLE WHITEHEADS ON MY CHEST. IT LOOKS KINDA LIKE CHIGGER BITES BUT I DONT KNOW. I DONT UNDERSTAND THAT IF IT WAS POISON IVY HOW COME I DONT HAVE IT ON MY ARMS SCINCE I WAS DIGGING AROUND THE BUSH WITH THEM AND I HAVE IT ON MY CHEST. I HAD A SHIRT ON SO IM CONFUSED. I HAVE LOOKED AT THE PICTURES ON THE NET OF POISON IVY AND SOME OF THEM LOOK LIKE WHAT I HAVE AND OTHERS DONT. I REALLY HAVE BEEN FORTUNATE NOT TO HAVE ACNE REAL BAD AND THE BREAKOUTS ON MY CHEST. BUT IM NOT SURE THAT THAT IS WHAT IT IS