For treatment of nipples and baby’s oral thrush:
(source: breastfeedingonline.com)
2 times a day--morning and night: Dip a Q-tip into the G/V and paint the nipples and areola thoroughly. With the same Q-tip, which has a little gentian violet left in it, swab baby’s tongue about mid-way back. It is fine if baby sucks on tip. Do this only the first time you treat your nipples.
Feed baby, which will give him a treatment with G/V diluted with breastmilk. At first application, re-paint nipples after feeding if much of the G/V has been removed.
If, throughout the day, your nipples begin burning again, you can re-apply G/V sparingly to the area of irritation.
Use Gentian Violet on your nipples twice a day until baby’s mouth and your nipples are much improved. Then you apply it once a day for a couple of days, then apply it every other day. At any time that your nipples are no longer hurting, you can take a day off from the treatment. If the burning/pain returns, resume the treatment. If there is not a return of the irritation and baby is feeding well you can consider that you no longer need to treat with gentian violet.