Cloudflare and hosting DNS

Hi… I’m new to cloudflare… I’m confused how to set up DNS.I copied DNS of cloudflare and changed it with my website’s DNS going to my domain registrar’s dashboard. And cloudflare shows my site is active. But what to do with the DNS of my HOSTING PROVIDER? What changes should I make there as now my hosting DNS is not there in domains DNS, instead DNS of cloudflare are present there. Somebody plz help … Sorry for my English

As long as your NAMESERVERS now point to Cloudflare (e.g. saul.ns.cloudflare.com) the entries at your old host will never be used. The two most common things to do is remove them completely so it’s clear they’re no longer in play, or leave them there as something to fall back to if you ever leave Cloudflare. I far prefer the former.