No harm will come to her. That's my sister you're talking about. If you run from pain or effort, you're really running away from pleasure. Often, the fear of pain is worse than the pain itself. An inoculation takes all of one second, but anticipation of the pain can last for hours beforehand.
Fear of pain is the greatest restriction there is.
If you're afraid of traveling, you'll never go anywhere. If you're afraid of physical or emotional exertion, you won't achieve, you won't grow, you won't find truth. And that always comes back to haunt a person. He wants to avoid pain. He wants to escape.