Before applying, I swab the area with alcohol to dry out the area, which makes it adhere better. If I showered beforehand, I wait 30 mins to 1 hour before applying, nor use any lotions, as wet skin or oils can mess with the stick. I was recommended the rolls, https://www.amazon.com/3M-Health-Care-16004-Transparent/dp/B01AWCD0I4/ and you can cut them to size to generously cover the area.

But I switched to a generic Vivelle dot 2 times a week, which is more of a thin, small diameter sticker and it sticks much better, I don't use the film anymore. Just like birthcontrol, we seem to need to try a few different brands before we find one that works.

I didn't know outer thigh was a placement - all the patches I've done say only to apply to the upper butt, lower stomach, or hip. I find the butt spot the best, with very little stretch and friction with clothes.

3M Health Care 16004 Dressing, Transparent Film Roll, 4 in x 11 yd (10 cm x 10 m) https://www.amazon.com/dp/B01AWCD0I4/ref=cm_sw_r_cp_api_i_KbBkFbC1RJBYK

This is the one I use and it works great!