Have I got necrosis or infection after a facelift after 11 days? (Photos)

This looks like an area of skin that has a compromised blood supply, However, in this area behind the ear in the long term it should heal quite well. This shows the problems with travelling abroad for surgery since you have no follow up care when you return to the UK. I would contact your GP to refer you to a Plastic Surgeon.  Or you could look in the BAAPS register of surgeons for someone local to you.  Unfortunately, the NHS is unlikely to be able to help in such situations where a complication has resulted from cosmetic surgery.

Based on the photo, you don't seem to be showing any signs of an infection. This may be a local tissue necrosis due to compromised blood supply. IT will be best to schedule an appointment with a board certified plastic surgeon near you for an in-person examination and a detailed discussion of post op care.

Hi, sorry to hear about your predicament !  It is likely that the skin flap will necrose but it isn't the end of the world !
I would recommend that you make an appointment with a BAAPS registered plastic surgeon near you.  Whilst you can book in with your GP, do not be surprised if you are charged a private fee for this.  The NHS is clamping down on treating cosmetic surgery patients who have had their surgery undertaken overseas, develop a problem and expect to be treated for free on the NHS.
I hope you get sorted out.

Sorry to hear and see your predicament.  In the UK, your care may be expedited by consulting with your GP who can at least start you on a course of antibiotics to limit the redness, which you report is extending past the black border.  Rely on them to refer you to a PS, who is more qualified to "nurse" you through the wound healing aspects.  In the mean time, don't scratch (to avoid innoculating superficial skin bacteria into the wound), limit the application of Betadine, take your temperature, monitor for purulent drainage and push on.  Good luck.

Hello,
Thank you for your question. It looks like you have an area of compromised tissue. The lower line appears somewhat abnormal like someone drew on your skin while the incision line is much more of what is expected a few days out. It does not appear infected in these photos. You should ask your surgeon for their recommendations based on what they did. This will likely require local wound care but may heal without major deformity in this area.
I can’t say it enough if you don’t have a surgeon that is available for your questions before and after surgery don’t let them operate on you!! Many people go abroad for surgery for many reasons. Sometimes it’s cost and other times it’s to see a renowned surgeon. I see consultations from a distance and have patients fly in on occasion fir surgery. However there is always a follow up protocol in place. It maybe via FaceTime, Skype, etc but communication with your surgeon is a must! 
Sincerely 
Dr G