How would I know if there's exposed cartilage after rhinoplasty? (Photo)

Hi, I asked a recent question about a nosebleed after picking at my nose, 6 weeks post op. When I look in my nose it looks dry and irritated and a tad bloody ( from constant allergies) but how would I know if I may have done damage and exposed cartilage? in both of my nostrils there is white at the top. I attached a picture. also what's the complications of exposed cartilage? infections? I wasn't picking all that hard and not with a nail...not sure what it takes to expose cartilage.