I have had sinus problems for my whole life, from when I younger and was taking 7 allergy shots per week for two periods of time in my life and it still didn't help. To make a long story short we moved to Las Vegas around mid-2000s and because of the dry weather I started getting sinus infections and started seeing Dr. Nasri for my sinus problems and that's been since 2009. He is very professional, thorough and knowledgeable in his medical field as an ENT Doctor. He put me on a maintenance program (2 nose sprays & 1 pill) for my sinuses in the last 6 years and I have had no sinus or breathing problems since. Also, 5 years ago he removed a tumor that wrapped itself around my face nerve behind my ear and surgery was very successful. His office personnel are very professional as well and works like a well-oiled machine. The waiting room is always full as a lot of people are constantly seeking his medical expertise, as the waiting times sometimes can be long but you have to be patient. I Highly Recommend Dr. Nasri to anyone!!