I purchased Allertrex in desperation after searching on the internet for a product to provide some relief from my allergies and their affects namely sneezing, runny nose, itchy eyes, sore sinuses, sore throat, blocked ears, excessive mucus production, coughing, asthma etc. I did not expect a miracle cure but thought it worth purchasing a bottle and giving it a try. I used 6 sprays 3 times a day as indicated and I felt an immediate difference. Initially, I noticed the lack of post nasal drip. Since using the Allertrex I can honestly say I have sneezed no more than anyone without allergies. My whole respiratory system has felt clear and free of any irritation. For the first time in many years I have felt wonderful, allergy free. I have not had any of the symptoms mentioned since using this product. However, I finished the bottle 2 days ago and today I have felt really unwell, violent sneezing, nose running like a tap, sore eyes, throat and sinuses, post nasal drip etc. Needless to say, I have ordered more Allertrex. This product is in my opinion a miracle. A wonderful product, expensive but worth every penny !