You can use your HSA and FSA tax-preferred savings account to purchase OTC products including ChapStick.* The passage of the CARES Act by Congress includes provisions to restore OTC eligibility under tax-preferred HSA and FSA accounts. Your plan details may vary, so save your receipt and check with your benefits or health provider for eligibility. At this time, ChapStick products included in this act are limited to ChapStick Medicated.