HELLO, CONSULT A SKIN SPECIALIST. IT'S A NATURAL PHENOMENON. ATROPIN IS AVAILABLE FOR THIS  BUT ALL THE SECRETIONS OF BODY DECREASES LIKE  DRY MOUTH, DRY EYE. I HOPE YOU UNDERSTAND THIS. YET YOU NEED YOU CAN CUT THE AMPLE PUT IT IN MOUTH SWEATING DECREASE . ALTHOUGH IT'S INJECTION BUT NO HARM IN TAKING ORALLY. IN OPERATION THEATER, SURGEON USES THIS AS THEY PERSPAIRING A LOT, WHICH MAY CAUSE INFECTION IN OPERATION SITE. I HOPE YOU UNDERSTAND ALL SIDES OF THIS. O.K BYE.