Help Request: Duplicate Meta Information and Pagination (not a plugin issue)

Hello,

I’m trying to fix a duplicate meta information issue (meta descriptions and meta keywords) in a blog that uses pagination. The duplicate meta information is giving me warnings in Google Webmaster Tools (GWT).

Blog URL: DumbDomme.com (NSFW)
Theme: Suffusion
Other Info: I am not using an SEO plugin

For example, my meta description for the home/front page (NSFW) is the same as the meta description for page 3 (NSFW) of blog posts.

I’ve been trying to find ways to correct this problem, and it seems that adding page numbers to the meta information is my best option, but I don’t know how to do that.

I found this code to fix the issue on another website, but I’m not sure how or where to implement it in Suffusion. I’m fairly sure I’ll need to create a child theme, but I’m still having trouble figuring out where to put this code or how to modify Suffusion’s code.

<?php if(is_home()) {
    echo '<meta name="description" content="META DESCRIPTION GOES HERE.';
    if ( $paged < 2 ) {
    } else {
    echo (' | ' . 'page ');
    echo ($paged);
    }
    echo '"/>';
    }
    ?>

    <?php if(is_home()) {
    echo '<meta name="keywords" content="META KEYWORDS GO HERE';
    if ( $paged < 2 ) {
    } else {
    echo (' | ' . 'page ');
    echo ($paged);
    }
    echo '"/>';
    }
    ?>

According to the website where I got the code, this would make the meta description for page X read: “Page X | Whatever meta description…”

My Questions:

1. Is this the best solution to fix duplicate meta information on a blog-post based blog that uses pagination for back (earlier) blog posts?
2. If so, how and where do I modify Suffusion to implement the change?

Any insight or help is appreciated. Thanks in advance.

Best,
D