Detox should happen under medical supervision either at home or at a hospital/treatment center. They are usually given medications to prevent seizures.
IME a person going through detox, or even a shortage of alcohol, is miserable to be around. My xah had a lot of anxiety, irritability, inability to sleep, nervousness, and that was just with cutting down and/or trying not to drink until later in the day. Detoxing itself was under medical supervision (and with medication) and resulted in even more misery.