Cinco, KY makes a lube that is egg shaped, clear, about 1" long that is placed in the vagina w/an applicator & melts gradually. Lasts for as much as 4 days. Liquibeads its called. Might have better "coverage" since its moving down from way inside instead of applied with penetration. Does that sound diplomatic enough? Anyway, might be worth a try. Also, knowing when the PMS was, you can kind of watch the calendar, too.
good luck
me: 66 H:60 2 adult sons 2 grandsons adult daughter deceased 5/05 me:Part time trainer H: plant suprv.