I want to explain how I have cured my rhinitis / sinusitis with black seed oil and the way I did it. I contacted a popular website for black oil who explained to me to put black seed oil on my little finger before bed and rub oil into each nostril. Then when I was was breathed through my nose I felt the vapours in my nasal passages. They told me to do nasal lavage after put oil. It was a very successful as I woke up with clear passage when normally my breathing is blocked and stuffy.rhi If you need help for sinus try this is it working for me too.