Sorry to hear about your situation, hope your ready come season. I always dress in layers and wear as light as possible for the walk in. Then gear up when i reach my sitting point or points. I spray down before I leave, once I arrive and throughout the hunt. Never can be too sure and the stuff is pretty cheap so why woory about it. I would be more concerend about getting cold from the sweat up from the walk in & getting chilled while sitting! Make sure to not wear cotton, use a polyproplene long sleeve shirt/LJ' s & wool or fleece layers. Pack some glove/mitts with hot hands(hand warmers). appropriate head/neck wear, some high protein snacks, water to drink or cup of soup if you like some warm liquid with a little food value (hot H20 is another good one).