I have severe allergies that aggravate Meniere's Disease (acute vertigo attacks). My suffering had me at wits end and my Doctor gave me a Kenalog shot in the shoulder. My symptoms cleared up in a couple days with no side effects other than the typical steroid effects of weight gain, hunger, irratability, etc. My allergies disapeared. It's lasted about 5 weeks and I'm trying to get back in for another shot.