This coupon has expired $3.00 for Mederma Cold Sore Discreet Healing Patch. Offer available at Walmart Online. expires on 03/15/23 Other coupons you may be interested in $1.00 for Jarritos (expiring on Monday, 01/02/2023). Offer available at multiple stores. $1.00 for Sangria Senorial (expiring on Monday, 01/02/2023). Offer available at multiple stores.