### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I was on a long flight from JFK to Istanbul, 9 hours. My ankles were swolen, one went down the other has stayed since March 8, it is now April 25 and there are red spots on my ankle. I saw a Dr. in Venice about two weeks after the March 8th flight who sent me to the emergency room. They did a blood test and said nothing indicated anything serious. I think it has improved a little, I got a blood thinner from the pharmacy, approved by the Dr. in the emergency room. I am now ready to go by bus to Prague, 2.5 hours and after a week, fly to London from Prague, 2.5 flight. Should I wear compression sox? This is on my right leg. In 2012, I broke the femur on my left leg and had blood clots after the surgery - all is healed now. I am an American artist and have been in Europe on painting residencies in Venice and in Cesky Krumlov, CR. I am in Cesky Krumlov, CR now till Monday. Do I need to go to the emergency room? I appreciate your help and suggestions. Thank you very much, Ms. Willie Marlowe 1/17/1943

### output:

Hi Ms Willie. You are having swelling in the foot after a long flight. One month or more you noticed red spots also on the swelling. All your ER Reports are normal. In my experience this kind of swelling after long flight is common and is generally relieved on bed rest with legs above the level of heart. Sometimes swelling on one side could be because of Deep Venous thrombosis /varicose veins. In both cases compression stockings are going to help you so use compression stockings on long sitting journeys. Also get a color Doppler to assess any Deep Vein Thrombosis / varicose veins . Continue Blood Thinners also till the diagnosis is confirmed.