Ok..that's a bruise( blue - Yes, Big- No).
Does it hurt?
Did you fall?
For how long has the bruise been?
What blood tests did you get done?
Was the bruise the reason for the blood test or routine tests?
Have you taken any medication for the bruise or done some home therapy?
Do you often get bruises randomly?
Do you think your information share is adequate to get effective advice?
Next Steps
Ice fermentation is definitely something that can be advised up front. 10 mins thrice a day for 5 days.
I would be happy to guide you on how to effectively seek advice which Will help YOU get the right advice at the right time.
Health Tips
My reply to the question is to empower you to seek correct advice which in medicine is directly dependent on the information and data you share.