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is a disfiguring and chronic disease.
In advanced swellings the plastic surgery
to reduce the tissue bulk is the only solution.
Filariasis is caused by a parasite that lived in and destroys the lymphatics channels of the body do tissues becomes loaded with protein and fluid and there is massive swelling and edema typically on legs.
The disease if identified early and treated with suitable antifilarial treatment like Ivermectin
and thiabendazole etc you can get good results.
But if the disease is prolonged the disfiguring is unavoidable and amenable to surgery only
I hope the advise would be informative and useful for you.