Hey, Diethylecarbamazepine  is the recommended medicine for treating filariasis. It is kills microfilaria and does not have any effect on the adult worms. Thus, it only helps to control transmission of infection from one person to other.  It may cause a reaction in some individuals.  Ivermectin or albendazole may be useful in some patients. Good hygiene of the affected part prevents the worsening of the lymphedema and secondary bacterial skin infections.  The affected limb should be kept elevated and regular exercises should be done to improve the lymph flow.  protect from the bites of filaria mosquitoes. Use of aerosols; mosquito repellent creams, mats, coils; nets and prevention of breeding of mosquitoes with better practice of hygiene and sanitation can help prevent filariasis.