Tell her to stop tanning her face for a while...
She can even out her color with a bronzing pwder..
Check out Caltans face bronzing powder for her to use...
She left the
solution on too long or didnt patch test herself first for sensitivity.......
(I never could figure WHY people do this stuff at home on themselves!!)
Suggest she sees a doctor or paramedical aesthetician for as Mitzi said a bleaching cream...
Be sure to tell her to STOP TANNING HER FACE until she gets this reversed.
C