The ComboPack of AllergiClear and SOS HistaDrops consists of multiple remedies that work well together to provide increased support for your condition. This ComboPack is for effective prevention and quick relief from airborne allergies. The AllergiClear protects against airborne and seasonal allergies, allergic rhinitis and hayfever while hte SOS HistaDrops clears symptoms of allergies, hayfever and allergic rhinitis without drowsiness for acute attacks of Allergic Rhinitis and Hayfever.