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

### input:
Hi. I sprained my ankle 10 days ago and it was put in a cast for 7 days. I have been using an ankle brace for the past 3 days, There was minimal bruising, i.e. only 3 really dark purple bruises and some discoloration on the sides of the ankle, but quite a bit of swelling. The swelling has gone down almost all of the way. I still have pain in the evening when I go to sleep. I am going on a 10 hour flight on Saturday and my question is, should I inject myself with Fragmin, or would taking an Aspirin and wearing compression socks be enough. As a side note, I bruised really badly when injecting the first 4 days, there was intense pain for about half an hour after each injection and there was a dark red circle around the injection site. The pharmacist suggested that I stop injecting and use aspirin.

### output:

Dear friend have not understood the need to use dalteparin that is frag min and aspirin in a case OS simple sprain ankle which has been adequately immobilized by a cast. Do you have any co-existing disease due to which this was indicated, in normal course the bruises resolve on their own in time it does not need any rigorous intervention. As regards to you need for travel is concern, if you are mobile and can walk, periodic walk down the aisle and keeping HY Chat Doctor?  All you need is to keep flexing your toes and contracting your calf muscles when seated for a long time.in case you do have clotting condition then use of aspirin is a good idea but still the former two i.e. fluids and walking still stay as use full.