This depends on the exact cause that is causing the prolactin hormone surge.
When excess prolactin is due to physiological causes such as pregnancy or breastfeeding, normal levels of this hormone will be restored as soon as the mother stops breastfeeding and recovers her regular menstrual cycles.
If there is a pathological cause, the woman may have to live for long periods of time with hyperprolactinemia. However, dopamine antagonist drugs can help to achieve normal prolactin levels in these cases.
Suggested for you: Hyperprolactinemia – Causes, Symptoms & Treatment.