You could consider a revision rhinoplasty in 5 months as you have suggested.
Kenneth Hughes, MD
Los Angeles, CA
You can have a revision now if there is nothing to be done to the tip--crookedness and bone chip. Definitely at 9-12 months.
If you are only 7 months post op from rhinoplasty, I would encourage you to wait 5 more months before you consider revision. Even though the next 5 months may not result in your issues being improved, the changes in the your nose may result in a nose you are happy about. Another good reason for waiting is that your nose will continue to heal, and you may see another area that could use improvement at the same time.
While your nose will likely remain a bit crooked, you do want to wait about a year total before considering a revision. First of all, you want the tissues to be completely healed as revision surgery is more difficult than the first surgery, and sometimes other small deformities only manifest themselves later (that can be corrected at the same time).