Please tell me how to reduce nose pores.

Since I have a lot of sebum on my nose, I've been using nose strips regularly, and I think my pores have gotten wider!

I used warm water. I hear that washing your face with cold water shrinks pores, but then I hear somewhere else that it doesn't, so I'm not really sure what actually helps.

Do you have your own method for managing your pores?

Please tell me how to shrink pores with home care without spending a lot of money!