Stock up on Allegra Allergy at Rite Aid! Select boxes are on sale for $17.99. Plus, buy one and receive 300 Plenti Points. The Points are worth $3.00 which can be redeemed on a future purchase. Use a $5.00/1 Facebook coupon. Later, submit for a $5.00 MobiSave offer and a $4.00 MobiSave offer. I tested the rebate offers and I was reimbursed for both! After the sale, coupon, Points, and two MobiSave offers, the medicine is $0.99!