Thermacell is what you need. It's about thirty bucks at most sporting goods store. I have had to use mine the last two trips after being swarmed and in just a few minutes no mosquitos. It burns butain to heat a wafer. I have not seen any reaction from deer when using it.
I am hoping the rain we got here in the Midwest was too late to have any impact on the mosquito population. As of late, no skeeters and no ticks PERIOD. hoping for the opposite come Saturday morning for deer.
PSE 2006 FIRESTORM LITE #70
PSE 2009 TREESTAND GX #70
PSE 2010 1/2 AXE 6 #60
PSE 2011 EVO #70