Arbico might have something to help.
This might be a better investment, Rynoskin that you wear when you work in chigger infested areas. (Marines wear something like this to protect themselves from Sand fleas.) Maybe A great gift for someone with tracking dogs who thrashes through black fly and mosquito infested northern forests and bogs!
Rynoskin wearable protection against biting insects
(Cheaper than multiple bottles of calamine??)
Mom has gotten a couple of ticks this year, mostly lower body. She did have a large one (what I call a ‘dog’ tick as opposed to a tiny seed/deer tick) where her ear lobe attached to her jaw - she woke up & saw it when she looked in the mirror! The Rynoskin pants might be a good present for her - birthday coming up! Thanks for the info.