I would check the dryer filter and the opening it"s connecting to the external vent and the exit. I cleaned mine out without gloves noting that i got a reaction only where the inner lint filter is. Once i cleaned this i still get a reaction so i sprayed the filter hole with an oxyclean, permethrin, borax spray. It seemed to help. I only put a few drops of permethrin in the 24 oz spray bottle. I feel like it's enough. I have do this for the vacuum and it's filter.
I'm actually looking at buying a mculloch 1275 steamer for the furniture and maybe running it through the dyer and everything else with permethrin.
I also imclude permethrin a few drops, clove neem oil, in my borax, oxyclean, dr. Bonners peppermint liquid soap. I shave my head. I got tired of the little party they were having when i had hair.
I joined a gym, steam room, exercise the abdominals. Abdominals have made a difference which i think is significant as well as jump rope. I jump rope on 2 thick mats to protect me knees. Jump rope cleans the lymphs faster get the blood circulating more than anything else. The amount of cramp strain i had in my descending colon has diminished greatly. I will post more on this topic in a week but i believe i'm getting close to my goal. I just don't want this conversation to steer in a direction where someone will debate or contradict what i'm doing. I can't be bothered with argueing at this point.