Swelling in leg can be because of cardiac , renal or hepatic origin needs to be evaluated.
As we don't know anything about his medical history so difficult to suggest any thing.
Please take him to a general physician in your place for better evaluation and treatment.
He needs complete physical examination will some blood test.
Next Steps
don't keep his leg hanging while sitting.
keep his leg elevated while sleeping buy keep pillow under his legs.
low sodium diet ( salt restriction)
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Disclaimer : The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding your medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.
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