yes, you should go back to your doctor
the kidneys are very important to have if you have heart failure
the kidneys help you get rid of excessive fluid out of your body if you have heart failure.
if you have an infection of your kidneys, this can be life threatening if you have heart failure.
if the infection or swelling is getting worse in your finger and hands, you need to go back to your doctor
or go back to the hosptial A&E department to see a doctor right away
you may have to go into the hospital to have your kidneys and heart monitored
until your infection gets better
let me know if you have other questions.
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