Adhesion problems occur with circ'd newborn boys, so no worries. You don't need to "care" for an intact boy's penis at all, that's another thing that's great! You just wash the outside like a finger.
NEVER, NEVER, NEVER retract your son's foreskin, and do not allow anyone (including medical professionals) to do so. A lot of people, including doctors, are not informed on proper care of the intact penis, so you have to be vigilant. Never allow any examination of your son without your or your husband's presence. If anyone tries to retract him, be prepared to move their hand and tell them they don't need to retract and that retraction will be damaging and painful.
Your son will be the first person to retract himself, and this will occur naturally through exploration when he is older. Many boys do not become retractable until the age of 5 years (although this can occur earlier or later, depending on the individual).
Anyway, I hope this helps! I have a pamphlet that I can email laying somewhere around on my computer, but for now, this link should help:
http://www.cirp.org/library/hygiene/
ETA: I found the link to that pamphlet. This is the HTML version but there is a link to the PDF at the top.
http://74.125.47.132/search?q=cache:...ient=firefox-a