HELLO, YOU MUST ALSO TAKE A INJECTION T.T ONE AMPLE IM STATE FOLLOWED BY ANTIRABIES VACCINATION. IT SHOULD BE TAKEN AS EARLY AS POSSIBLE AFTER EXPOSER TO A BITE, ITS O.K YOU ARE TAKEN WITHIN 38HOURS. ANYTHING IS BETTER THAN NOTHING. NO MUCH HARM, BUT DIFFERENCE IS THEIR. YOU HAVE TO TAKE ALL DOSES AS IT IS A STRAY DOG. DON'T WORRY, AS NO BODY KNOWS HOW MUCH RABIES EFFECTS AS IT DEPENDS ON IMMUNITY AGAINST RABIES, WHICH IS DIFFERENT FOR DIFFERENT PERSON. I HOPE YOU UNDERSTAND THIS. O.K BYE.