+1 on Maalox. It will knock down a severe bout of acid reflux in short order. I used to take Prilosec but didn't like the idea of taking a daily dose for only occasional problems. Now I just down Maalox (liquid or tablets) whenever AR rears its ugly head and it's usually gone within 10 minutes. I keep Maalox in my vehicle, in every bugout bag, at my desk at work, at home... it's rarely more than an arm's length away.