It is normal to experience some asymmetry when healing from injections. Swelling and bruising can last approx. 2 weeks. Sleep with your head slightly elevated and apply ice packs for 10 mins several times a day to reduce swelling. Use your best judgement, if the area is getting worse...
Swelling is a common side effect from nasolabial fold injections. Swelling peaks at 24-48 hours. Sleep with your head slightly elevated to reduce swelling. Best of Luck.
Restylane is a great treatment for the area under the eyes. I do not believe that the sinus infection has anything to do with the Restylane injections. Please consult an ENT to be examined for your sinusitis.