1) These Status Ailments last even after Battle is finished.
Poison: At the end of each turn in battle or with each step on the map, a poisoned character will lose HP. Cure it with an Antidote or the spell Heal (Lv.1).
Dark: Darkness lowers hit percentage, causing complete misses or just a lower number of hits. Cure it with an EyeDrop or the spell Heal (Lv.1).
Curs: Curse lowers attack and defense. Cure it with a Crucifix or the spell Heal (Lv.2).
Dumb: Dumbfounded prohibits spell casting. Cure it with an EchoScn or the spell Heal (Lv.3).
Frog: Frog lowers attack and defense and prevents you from using magic or items. Cure it with a MaidKiss or the spell Heal (Lv.4).
Ston: Stone prohibits action. Cure it with a G. Needle or the spell Heal (Lv.5).
Dead: Death prohibits action. Cure it with a FenixDn, at a Shrine, or with the spell Heal (Lv.6).
2) Battle only Status Ailments
These Status Ailments are cured after battle or randomly during the battle.
Conf: Confusions causes you to lose control of your characters actions. The character will act randomly.
Hold: Paralysis prohibits action.
Mini: Mini lowers attack and defense.
Mute: Silence prevents spell casting.
Sleep: Sleep prevents action.