Provided I don't have a nose piercing but I do have 2 lip piercings I can only assume the healing possess is the same.
They do recommend you to clean your wound about 2 times a day morning and night when you've just got it and then you can go down to just morning everyday.
However as I did my first lip piercing I got terribly annoyed by the scab (really scab, had to double check that word lol.)
Anyway it forms around the wound and dries up and can be quite annoying if anything it constantly stings when the piercing move so what I did was that I removed the scab like 3-5 times a day. Which means I cleaned it 3-5 times a day.
I kept doing this mostly to get rid of the stingy annoyance but it also kept it really clean obviously and they've both healed up nicely and I never had any infection in either one of them.
I have my nose pierced too. Don't obsess about it, just clean it well each morning with anti bacterial soap or you can use cream to prevent infections. Just don't take out your piercing for a good 3 weeks until its completely healed because that will because infections and make your piercing heal and close the piercing hole.