If you check folklores and mythology, there degree of complexity of references to an entity that the dead anywhere in the planet of the dead.
Since one of the many effects of one's hangover is dehydration, the person must be made to have a good amount water to handle the dried up mouth. http://Bigcrisisdata.org/dokuwiki/doku.php?id=heyecan_yasatacak_diya_bak%C4%B1_esco_t_bayan_asl%C4%B1