Remove cache after hacked Wordpress site

I faced this issue also I added this code to my .htaccess file get rid of it. Please try it.

<IfModule mod_expires.c>ExpiresActive onExpiresDefault "access plus 1 month"ExpiresByType image/gif "access plus 1 month"ExpiresByType image/png "access plus 1 month"ExpiresByType image/jpg "access plus 1 month"ExpiresByType image/jpeg "access plus 1 month"ExpiresByType text/html "access plus 3 days"ExpiresByType text/xml "access plus 1 seconds"ExpiresByType text/plain "access plus 1 seconds"ExpiresByType application/xml "access plus 1 seconds"ExpiresByType application/rss+xml "access plus 1 seconds"ExpiresByType application/json "access plus 1 seconds"ExpiresByType text/css "access plus 1 week"ExpiresByType text/javascript "access plus 1 week"ExpiresByType application/javascript "access plus 1 week"ExpiresByType application/x-javascript "access plus 1 week"ExpiresByType image/x-ico "access plus 1 year"ExpiresByType image/x-icon "access plus 1 year"ExpiresByType application/pdf "access plus 1 month"<IfModule mod_headers.c>   Header unset ETag   Header unset Pragma   Header unset Last-Modified   Header append Cache-Control "public, no-transform, must-revalidate"   Header set Last-modified "Mon, 1 Apr 2017 10:10:10 GMT" </IfModule> </IfModule>