Ten days ago, I used 100% TCA chemical peel on my nose. It has a crater on the top. Does it look like it will scar? (Photos)

Are you certain it was 100% TCA?  Generally, experienced plastic surgeons and dermatologists don't use strengths more than 40-50% TCA at the maximum, because of the risk of scarring.Sorry to hear about your problem.  Best to seek out a local derm or plastic surgeon to discuss how to manage the wound for the best outcome.

I don't recommend doing peels yourself, due to the risk of complications. I recommend getting a formal evaluation with a cosmetic dermatologist for after care and treatment. See an expert. Best, Dr. Emer

Not clear if you self treated yourself or was treated by a MD? Call around your city to find boarded derm/PS to see you as urgent situation. Offer to prepay for consultation. 

Yes, this will more than likely scar. The scar will be 50-100 times the total surface area you were attempting to treat . You can minimise the scar by seeing a plastic surgeon or dermatologist. They will 1. Dress the wound, take swabs 2. Cover you against infection 3. Remove any necrotic eschar from the base 4. Wait 3-7 weeks for granulation tissue 5. See you 2-3 x a week till this total heals. 6. Use silicone dressings, post closure 7. Consider Vascular laser in a few weeks 8. More than likely excise the scar 9. Cover the wound bed with a FTSG. 10. Revise the FTSG graft! with factional Co2 or erbium laser 11. Redress the area and wait for total wound healing 12. May encourage EGF and PRP early on, then the usual silicone and vascular lasers later. This scar can be improved with time and treatment. Dr Davin S. Lim. Brisbane. Australia.