@SuricrasiaOnline This may be what you're referring to, but Tegaderm (yes, it's a brand name, sorry) is relatively inexpensive in quantity and reportedly great at keeping medicine patches on skin. Stays on for a week or so, showerproof, etc.
(And deals with flexing, etc. great: just took one off my knee a couple days ago, had been on for about a week.)
@aschmitz yes, tegaderm is what I use c:
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