I've had an onion smell in my left nostril for awhile now, even small bits of snot carries the smell on a tissue. i had a scab in the upper part of my nose for awhile but it's healed now and i still smell it. what is going on?

Dry mucus membrane: It may be the that drying of the mucus membrane is causing this symptom. Use an emollient to soften the mucus membrane. Use any emollient like , Vaseline, in the opening of the nose. Use is sparingly to avoid inhaling the emollient. In the morning rinse the of use nose with a warm saline solution. You can make it by adding a teaspoon of iodine free salt to a glass of water.