Brief Answer:
Swelling in the left kidney needs further investigation & correct diagnosis

Detailed Answer:
Hello Mrs XXXXXXX

Thanks for posting your query on Ask A Doctor Service.

Swelling in the kidney indicates obstruction to the urine outflow from the kidney, this needs to be properly investigated and you will need to be examined in person by a urologist.

Please consult a urologist urgently and get yourself examined to find out the exact cause for the swelling of the kidney.

Once a definitive diagnosis is made, I can guide you better regarding diet and fruit juices.

I hope this is useful to you.

Wishing you speedy recovery.,

Best wishes

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