Suggest Treatment For Severe Swelling And Pain At The Ankles And Calves Apart From Breathlessness And Fatigue

my husband has severe swelling and pain from the inside out in both ankles and calves this is been going on for about two weeks...at first it was only in right foot and he though it was cellulitis..but now is in both feet, he is also experiencing shortness of breathe durilng activity and fatique throughout most the time he is awake