In the months to follow as they begin to mound and future growth takes place, try to avoid bumping them because it will hurt like a somethin' somethin'

Be sure to allow proper space as entry doors and car doors tend to be the most common boob offenders
Body lotion tends to be nice for soothing and keeping the nipples from becoming chapped, just put a squirt in each hand and apply in a light circular motion starting at the top, moving inward and then circling about the bottom and repeat
I tend to use Suave with vitamin e, it's inexpensive and works well on the entire body right after a shower and/or before bed