What is the ruling on entering the جامع (grand mosque) during one's period (post-childbirth bleeding or menstruation) for the purpose of volunteering and providing first aid inside it?

Islam is a religion of ease and رفع الحرج (removing hardship). It is permissible for a menstruating female paramedic to enter the mosque to provide first aid to a sick person if no pure (non-menstruating) women are available to perform the work, due to urgent necessity. Indeed, "necessities permit the forbidden," and "necessity is estimated according to its extent." Therefore, the paramedic should not remain in the mosque longer than needed. If she works continuously, she should alternate shifts outside the mosque and only enter when there is a case requiring first aid.