Is it permissible for a person who performs Ruqyah to order an enchanted woman to control the Jinn that possesses her to go with him to the place where Jinn reside and fight them with a sword, for example, and to ask a Muslim Jinn to bring armies to fight the family of the Jinn who possesses her?

All perfect praise be to Allaah, The Lord of the Worlds.  I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu ‘alayhi wa sallam, is His slave and Messenger.

The person who performs Ruqyah (healing with the Quran) is only allowed to use a method that is in line with the Sharee’ah (Islamic law), that is to say: reading the Quran over the sick or enchanted person, making supplications according to the Sharee’ah or performing Thikr (words of remembrance of Allaah) according to the Sharee’ah.  The person is not allowed to perform acts that are like those of sorcerers and soothsayers, or that are closer to superstitions and illusions than fact.

What is known about the righteous predecessors' practices in this regard is enough, both satisfactory and convincing. It was narrated on the authority of ‘Uthmaan ibn Abi Al-‘Aasi (Ibn Abil’aasi) that when the Prophet, sallallaahu ‘alayhi wa sallam, appointed him as  governor of At-Taa’if, some thoughts began to distract him during his prayer, making him doubt the number of Rak‘ahs (units of prayer) he had performed. Therefore he traveled to the Prophet, sallallaahu ‘alayhi wa sallam, and told him about this. The Prophet, sallallaahu ‘alayhi wa sallam, told him that a devil had caused this and asked ‘Uthmaan to come closer to him.  He then beat his chest and gently blew spit-less breath into his mouth saying: "Get out, you enemy of Allaah." He did this three times and ‘Uthmaan was cured by the permission of Allaah the Almighty.  [Ibn Maajah: Saheeh]

Our opinion, therefore, is to avoid such matters, as mentioned in the question in detail. 

Allaah Knows best.