Will open rhinoplasty exacerbate my vitiligo?

To my knowledge, open rhinoplasty would not be expected to affect a patient's vitiligo.  Be sure to discuss your goals and concerns with your board certified plastic surgeon and consider the pros and the cons. Be certain your surgeon is properly certified.  I've attached a link where you can start your search. 

Hello and thank you for your question.  The
best advice you can receive is from an in-person consultation.  Vitiligo is usually not worsened by rhinoplasty.   Make sure you specifically look
at before and after pictures of real patients who have had this surgery
performed by your surgeon and evaluate their results.   The most
important aspect is to find a surgeon you are comfortable with. I recommend
that you seek consultation with a qualified board-certified plastic surgeon who
can evaluate you in person.
Best wishes and good luck.
Richard G. Reish, M.D.
Harvard-trained plastic surgeon

Rhinoplasty, open or closed, should not exacerbate an autoimmune skin disorder either way. Inflammatory disorders, like acne or rosacea, may have temporary flare up but no permanent issues. 

Hello and thank you for your question.  Regardless of the approach used- open or closed, rhinoplasty really shouldn't exacerbate your vitiligo. I would suggest you speak to your rheumatologist who treats you for the vitiligo and be certain that no sort of facial trauma can exacerbate the vitiligo (which I can't imagine that it would). If the rheumatologist clears you, then again, open or closed approach will not matter. Hope this helps!

A closed rhinoplasty approach can completely avoid the external incision, therefore not exacerbate your vitiligo.