Can clove oil cause nerve damage on gum if it's diluted and used a few times a day?

Very briefly: It only masks dental pain for very brief times while you're awaiting your appointment. It will not remove the need for appropriate care - but to get through a wait, a diluted well-spaced use will not be likely to damage nerves or even gum tissue. Just remember that it is not a treatment - only a relief. Hope your dental care will go well.