I work in the Siskiyou’s just across the border. I have it in a varying degree of severity ALL year round. Sometimes I have to walk directly through it, sometimes my dog does, or on my boots or pants, the laundry, working up a critter that’s covered in it, finding a collar that’s in the middle of it, etc.
I frequently have it on my junk cause every time I take a leak I spread a little bit of the oil from my hands to sensitive areas.
I’ve found it to go best if I just take a hot shower with Dawn dish soap at the end of the day- especially if I knowingly walked through it, and washing those clothes separately. Pretty sure it’s been on washed towels too, and that’s no bueno.