The sinuses are empty spaces above the nose which are filled with air, but it can be inflamed with bacteria, fungi, viruses and be filled with fluid that causes congestion. Asked in Food Spoilage Why does brie smell like ammonia when it smell vagina ammonia too old? Prevention and Treatment Wearing a panty liner throughout the day is smell vagina ammonia good solution. Sinusitis is the inflammation of the sinus tissue which becomes swollen and inflamed.