Should I be concerned about a bruise like discoloration on nose bridge 6 months after rhinoplasty? (photos)

Recently a bruise-like discolouration appear on nose bridge. I had redness on the bridge but it faded and suddenly it expanded to cause red purple hue at the lower part. I had rhinoplasty about 5-6 months ago. Tender when pressed on the impacted area, tried antibiotics course but seems like no use. No swelling just concern on the expanded red purple discolouration and surgeon said it’s normal? The thing is it was not like this before and it got worst.