Alcohol withdrawal syndrome affects people who stop drinking suddenly after they’ve been drinking heavily for weeks, months or years. Withdrawal from alcohol can be life-threatening. It requires medical supervision and treatment. You should never try to detox from alcohol on your own at home. But many people keep away from treatment centers, because they do not know what to expect. So, what can you expect from alcohol withdrawal treatment? The severity of your symptoms and the extent of the treatment you require will depend on how long and how heavily you have been drinking. You can expect the first withdrawal symptoms to appear six to 12 hours after you stop drinking. Some people still have a measurable blood alcohol level at this point in alcohol withdrawal.