A. It takes five minutes for the zombie villager to start healing after you feed him a golden apple. The zombie villager will continue to act like a zombie for these five minutes. Read more how to cure a zombie villager
How can a zombie villager be treated without a potion?
A. There is currently just one alternative method in Minecraft for treating zombie villagers. The weakening effect is necessary for zombie villagers to be treated, though. You must entice a witch to the zombie villager in order to get the desired effect. If you are poisoned, slowed, and within three blocks of the witch, she will toss a weakness potion at you. You must be close enough for the weakness potion to hit the zombie villager as well as you when she throws it at you. The zombie villager will experience weakening as a result of this, and you can then carry out the regular giving procedure.

Conclusion
Congratulations! You’ve now mastered the art of healing a zombie villager. In Minecraft, having this talent can help you trade emeralds with more villagers by bringing them into your world. read more how to cure a zombie villager