The obstruction of the lymphatic system causing the marked inflammation and obstruction to lymphatic fluids especially in the lower limbs is known as daul feel. The limbs get swollen and resemble the feet of elephants.
Unani physicians attribute filariasis to the imbalance in the phlegm, yellow bile and black bile.
In a comparative study with the generally used allopathic medicines, Unani medicine fared better and at least three times more effective. This disease is characterised by periodical bouts of fevers, chill, rigor and pain along with swelling in the affected limbs. Initially the swelling is not very prominent. It mostly affects the lower limbs followed by the testicles, arms and breasts. It might affect more than one part.