i have multiple small paper cut like wounds on my fingers from work today. none of them were actively bleeding, but i gave a homeless man change and his hand touched mine. his hands looked dirty and i have really bad anxiety he might have had hiv and had dried semen or blood or something on his hands. im confused because ive looked online and some sites say the wound has to be deep, some just say cuts in general, some say hiv dies when exposed to air and some say hiv lives for awhile in dried blood and such. when i used hand sanitizer afterwards it stung my cuts. im really nervous please help me