I really want to add antihistamines (Cetirizine) to my sway. But I am not allergic to anything, so I feel weird to take medication without really needing it... So my question to all of you who include antihistamines in their sway: Do you have any allergies or are you just taking it for swaying reasons? Is it safe to take cetirizine without a medical indication? Do you have any side effects?