I run a web hosting service and have extensive malware cleanup experience. I can get your site clean and secure so there will be no re-infections.
99% of infections come from outdated software, so I'll have to look the whole install over for old plugins that are not updated.
Will need: Hosting panel password, wp-admin, Google Search console credentials.
It takes up to 3 days for things to clear up with Google, after everything is clean.