@kim_harding #mites similar to scabies but not requiring intimate contact are a perennial problem here! As the article says, soap and water, forget them. Not human transmitted here - there aren't any! But wild animals, particularly wild pigs and badgers who used to have diggings in the area. Microscopic wind-blown eggs too.
Being allergic also sends early warnings.
Experimenting with using solid oxygen-based bleach in cool laundry now, as hot washes and chlorine-based bleach are so environmentally heavy.
Easily grown Pennyroyal tincture works but highly NOT recommended unless you know what you're doing - lethal by paralysis to humans too! 50% DEET is lethal to them as well as repellent. Veterinary and agricultural #Permethrin is very cheap and available in bulk BUT being very insoluable in water, the cheap sources I've found are dissolved in toxic organic solvents, often including toluene. The low-concentration human pharmaceutical ointments are the scarce rip-off.