Today, my father got injured by a knife while doing household job.he applied aftershave on it and pressed it with a piece of cotton and he felt a little pain in his hand. It was a normal small cut.but when he sat down he suddenly got faint ,we took steps of first aids and after some time when we put some water on his face then he open his eyes. i want to ask you that why this occured and what precautions we can take in future for the situation like this