I have edema and petechiae on my feet after a give hour flight -- is it safe to fly again?

Flight health issues: Flying, esp. for long times, can be quite taxing. If u notice swelling of the feet and ankles, this means ur circulation was not very good while u were stationary for all that time. Best to get an aisle seat and get up and down the aisles every hour. If you have a middle seat, try ankle/foot lifts to 'pump' blood through those areas. Petechiae might mean something more tho- u should get it checked