This is the same as your other post. Unfortunately, you received a very bad answer from someone on that other forum - the person who responded copied and pasted an answer without reading your full question, and posted on the WRONG assumption that your husband got stuck by a needle.
Please, for your own sake, seek treatment for your irrational fears. I'm not judging you, because it's not your fault, but you need help before this phobia ruins relationships and your ability to enjoy life. This is not rational or realistic thinking, and nobody in this, or any other online forum, can give you the help you need.