Discoloration after rhinoplasty. Can this be treated with lasers or is it permanent damage?

Great question! Post-inflammatory hyperpigmentation and spider veins from revascularization are relatively common after many types of facial procedures.  A laser that targets pigmented tissue should be effective for both of these issues

Thank you for your question. Please review your discoloration with your medical team and board certified facial plastic surgeon. Keep in mind that you are only 3 months into a healing process which takes 12 months, and that you should continue to see improvement as you approach the final 12 month post op mark.
Best wishes,

Your observations are not too uncommon after rhinoplasty whether closed or open.  I would ask your surgeon for a referral to a dermatologist who possesses a tunable dye or vascular specific laser. Your surgeon will know the appropriate interval before treating.