I had a rash after drinking a few glasses of vodka. its only on my palms and look /feel like bubbles under the skin.itching stopped but bubbles remain?

Probably not vodka: You are describing an allergic reaction, but it is very unlikely that vodka is the cause. I would suspect additives to the drink, or food that you had with it. The "bubbles" should go away soon. As long as you are not having difficulty breathing, you an wait it out. It's important to figure out what caused the reaction, though, because next time it can be more severe.

Allergies!: There are many chemicals in any one drink! there may be something in specific in that vodka that you had that you are allergic to!