The delta tone used in Sinus Congestion is meant to vibrate at a particular frequency that will help lessen your pain and clear your sinuses. Combined with your medications, healthy eating, eating plenty of fruit (particularly those rich in Vit.C) and water consumption, you will get the sinus congestion relief that you terribly need.
Allergy Relief Recording works best when you're in a place where you can relax. Simply put on the headphones and you'll quickly slip into a deep Delta and Theta state. When you hit Delta, just let the relaxation ease you into a healing state. Then, as you reach Theta focus on your breathing.