What a drag Tangles, I used to feel bad for myself but after reading your anecdote I feel pretty lucky.

By way of follow up here is a link to a source for Ultrathon 3M I mentioned earlier, and here is the 3M Ultrathon Military Products Webpage

Sorry Tangles but it does contain deet albeit at a reduced [concentration]. Look for a citrus/eucalyptus based repellant, or one based on pyrethrins perhaps.