dry out
• become completely or excessively dry.
• "try not to let the soil around the tree dry out"
• (of a person dependent on alcohol) stop drinking alcohol, especially by undergoing a course of treatment designed to break the dependence.
• "he checked into a London clinic to dry out"
Similar:
give up drinking,
give up alcohol,
become teetotal,
overcome alcoholism,
take the pledge,
go on the wagon,