Just come across this thread it was originally posted by Julaybib on sunniforum over a decade ago. So I though I would cut/paste it here.
Malady of Love Sickness
As Salaam Alaykum.
Bismillah Irahman Irahim:
Since this issue keeps cropping up I will Insha'Allah post several extracts from the Book of Hazrat Hakeem Akhtar sahib (Db) concerning this issue of lust and secret desires.
The Following is a letter written to Hazrat Ashraf Ali Thanvi (Ra) from a man Suffering from Love Sickness and seeking Advice.
FROM ONE MADLY IN LOVE:
Letter 1)
* I am Madly in love with a certain woman. I desire to rid my heart of this unlawful feeling but I find myself helpless in this regard. Both my deen and duniya are suffering its consequences, Hazrat please help.
Reply 1) from Hazrat Ashraf Ali Thanvi

* Leave the company of the beloved one immediately. This separation should be both Physical and intellectual.
* Physical seperation entails that you do not converse with her, nor do you allow her to converse with you. Do not look at her, do not allow anyone, to discuss her in your presence, nor should you ever discuss her before anyone.
* Mental separation entails that you do not deliberately entertain or introduce
any thoughts about her in the mind. Involuntarily if her thought or image flashes in your mind engage yourself in some diversionary activity at once.
* Make dua to Allah abundantly for assistance.
* Constantly engage in Zikr of Allah no matter how routine or mechanical it appears.
* Thereafter inform me of your progress.
Letter 2) ....From The One Madly In Love:
* Allah be praised! I already am beginning to feel a decrease in my sentiments for her.
Reply from Hazrat Thanvi

* Insha'Allah, you will make further progress. Continue with the prescription.
Letter 3) .....From the one Madly in Love.
* Love for her has almost diminished completely from my heart. Whenever her thought comes to my mind, a slight pang is experienced in the heart. Hazrat is requested to make dua that Allah removes all traces from my heart.
Reply Of Hazrat Thanvi

* The remedy is the same as before. Adopt total separation under all circumstances; all emotions will disappear. If any inclination appears thereafter, do not be concerned about it, for this is harmless.
To be continued......................................... ...........................Insha'Allah.