How can I remove this dark horizontal line on my nose? (Photo)

Surgery would not be the answer. A laser treatment to resurface that area of skin would likely be your best next step. I would recommend you see a dermatologist for this issue. Good luck!

this line usually occurs from people who have allergies and constantly rub their nose pushing up on the tip of the nose this bending causes a dark line first the allergies need to be managed properly then chemical peels or bleaches or BBL treatments could be use to lighten the pigmentation