Sudafed (the working version) was one of the go-tos for seasonal allergies, alongside Claritin. Not everyone reacts to allergens the same way. You'd take Clar

Sudafed (the working version) was one of the go-tos for seasonal allergies, alongside Claritin. Not everyone reacts to allergens the same way. You'd take Claritin daily for the month or so, then Sudafed for a day or two when it got bad.