Based on the photographs, the swelling is not what we normally see following otoplasty and may represent a collection of fluid or blood within the area where the surgery was performed.
I would definitely recommend seeing your plastic surgeon as soon as possible so he or she can perform an appropriate physical exam and treat you as needed.
The swelling seems normal and standard to the period of time you have had your surgery swelling takes some time to subside everything looks normal, but it would be good also if you went with your plastic surgeon just so he can revise you and see if recommends anything else to help with the swelling and overall so you are more at ease.
Patients can develop significant swelling after otoplasty. However, the
ear shape should look relatively normal, just very swollen. The photographs you
provided do not demonstrate a normal contour to me. It appears that you have
significant swelling behind the ears, likely representing a collection of fluid
or blood. I would recommend that you contact your surgeon as soon as possible
for evaluation and to discuss treatment. Needle aspiration may be sufficient,
followed by compression. If seromas or hematomas are left untreated, they could
lead to cartilage necrosis or cauliflower ear. Best wishes.
You may have a collection of fluid or blood between the skin and cartilage behind your ears. If that is the case, you may benefit from drainage to prevent ear-cartilage necrosis. Please consult your surgeon for evaluation as soon as possible.
What you are experiencing is normal swelling. It takes several weeks for swelling to subside and to see your final results.