Is there any treatment to reduce Mathi.

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 is His slave and Messenger. We ask Allaah to exalt his mention as well as that of his family and all his companions.

There are some factors which may reduce the pre-seminal fluid, like single men getting married, and not thinking about enjoying women and matters which arise sexual desires. You may also consult doctors specialized in sexual diseases, as this condition might be a result of health disorders or due to a disease.

May Allaah cure all the Muslim patients. 

Allaah Knows best.