Pink color in transplant area now 90 days

I have seen this only a few times in thousands of surgeries.  The pink color will eventually go away.  Some people put hydrocortisone 1% on it (can be purchased over the counter, but only apply it twice a day for 5 days and then stop it).  If it doesn’t go away, maybe a dermatologist can prescribe a more potent anti-inflammatory drug or you can wait it out.  I doubt it is a low-grade infection, but maybe if you don’t respond to the hydrocortisone cream, see a dermatologist.