i watched a video where a dr. suggested nicotine patches for long covid or wearing as a preventative. he was using 2mg patch. THIS IS MY EXPERIENCE SO TAKE WHATEVER YOU WISH FROM THIS: i've never smoked a cigarette but like the majority of us, we'll try anything. i ordered some patches from amazon and hubby cut the patch into a few strips so i'd start on a low dose and document how i was feeling on it before increasing dose. put the strip on shoulder in morning; by early afternoon i was feeling very stimulated (i've been diagnosed hypomanic on bipolar spectrum for more than 40 yrs.) and i felt the patch was moving me into mania so by then, i gave up on the patch. still waiting for some miracle as i'm on my supplements and antihistamines from reading the survivor corps long haul forum and going on 3 yrs. of symptoms tho over time symptoms have improved. insomnia still an issue even with several sleep meds which i've been on for yrs. and now have food sensitivities and they create dizziness and tingling in feet but i'll take a benadryl after dinner and wake up feeling somewhat normal. would love other's input re nicotine patch.