What happens if you put a retainer in a healing nose piercing?

Inserting a retainer into a healing nose piercing can irritate the tissue and potentially cause complications, such as infection or delayed healing. The retainer may not fit properly, leading to increased friction and discomfort. It's generally recommended to wait until the piercing has fully healed before using a retainer to avoid these issues. Always consult with a professional piercer or healthcare provider for personalized advice.