More then 4 weeks. If out take it out to soon then you will create a lot of irritation and then more puss will come. My Best Friend had hers done and we changed it too soon!
Yes 10 days is much too soon. Ive had my eyebrow pierced twice, first one rejected after a year.. I'm on my 2nd now. I pierced it in my transition to college, I had a month off of work while transferring stores.. Anyways I just changed it tonight, its been 3.5 weeks and its a little irritated, I think it will be fine but not sure yet, so yeah I'd wait until you have a longer gap of time to take care of it. Good luck