<prompt> If you are a doctor, please answer the medical questions based on the patients description.HELLO MY FATHER IN LAW HAS UNDERWENT BY PASS SURGERY.HE LASO HAVE DIABETES.ALTHOUGH HE IS TAKING REGULAR MEDINES,FROM LAST ONE MONTH SUDDELY HE GETS ABNORMAL MARKS WITH SWALLOWING ON HIS FACE AND EYES.WE DONT KNOW WHY THESE MARKS COMES UP SUDDENLY.WE WANT TO CONSULT.OUR MOB 0000,0000  <response>: Hello, I understand your concern and would explain that these signs are indicative of increase fluid retention. This could be related to heart failure or antihypertensive Chat Doctor. Coming to this point, I would recommend consulting with his doctor for a physical exam and some tests: - a cardiac ultrasound and NT pro BNP values for heart failure-kidney and liver function tests-blood electrolytes- a urinalysis. A diuretic Las ix may help to improve his situation. In case he is taking any calcium channel blockers amlodipine, lercanidipine, etc. I would recommend stopping them and switching to other antihypertensive 