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Symtomes and management of Leg swelling and Dysurea 
The apperiance of unilateral leg swelling could be a sign of Edema which is a fluid collection in the tissue of the limbs and its a signs of dysregulated function of the kidney, heart or the liver or a sign of urinary tract infection especially if it is combined with urinary symptomes like dysurea and hestinacy, and to treat the Leg swelling you can use Hydrochlorothiazide 12.5 mg tab once daily in the early morning accompanied with leg elevation at night.
On the other hand, the association between leg swelling and other systemic manifistations like shortness of breath of abdominal swelling should allert for doing proper investigations and consulting your treating medical doctor.
Required investigations 
To diagnose the problem properly you are adviced to do the clinical exam and do Urine analysis to uncover any rise in white cell count and bacteria as a cause of Urinary tract infections, also the analysis should reveal any increase in Sodium level indicating kidney malfunction, and you should do kidney functions tests  ( Urea & Creatinin ) to check for the kidney funtion , blood electrolytes ( k &  Na) , liver function tests ( AST, ALT , ALP , TOTAL PROTEIN , ALBUMIN ) and do ECG and Echocardiography for the heart to rule out heart failure, also you are adviced to do abdominal ultrasound to check for liver , kidney and prostate abnormalities as prostate enlargement could cause some degree of urine Drippling. A Doppler US exam of the leg to uncover any signs of tissue edema and deep venous thrombosis 
Possible causes 
Urinary tract infections 
Deep venous thrombosis
Prostate Hyperplasia 
Liver, Kidney and heart failure 
 
Our Advice 
we advice a healthy diet clear from any salt ingredients and perform daily regular excercises with leg elevation at night and consult your treating family doctor if still complaining.