Seasonal allergies... despite taking Claritin, I am not relieved.

Yes, it is possible to try a different antihistamine such as Aerius or Reactine to see if it provides better relief for your seasonal allergies. Another option could be to ask your doctor about a prescription for an intranasal corticosteroid like Nasonex, which is often more effective in managing allergy symptoms. You could also inquire about a stronger antihistamine like Reactine 20 mg or Rupall 10 mg. It's important to consult with your doctor to determine the best course of action for managing your allergies.