Is Methylrosanilinii chloridum [INN-Latin] Safe in Breastfeeding

I am a breastfeeding mother and i want to know if it is safe to use Methylrosanilinii chloridum [INN-Latin]? Is Methylrosanilinii chloridum [INN-Latin] safe for nursing mother and child? Does Methylrosanilinii chloridum [INN-Latin] extracts into breast milk? Does Methylrosanilinii chloridum [INN-Latin] has any long term or short term side effects on infants? Can Methylrosanilinii chloridum [INN-Latin] influence milk supply or can Methylrosanilinii chloridum [INN-Latin] decrease milk supply in lactating mothers?

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Methylrosanilinii chloridum [INN-Latin] (crystal violet) was used in the past to treat oral and nipple thrush during breastfeeding. Methylrosanilinii chloridum [INN-Latin] is potentially toxic to the mucous membranes, causing ulceration,[1][2][3][4] and potentially tattooing the skin. It can also interact with DNA[5], is carcinogenic and mutagenic in rodents, and occasionally causes allergic sensitization, with cross reactions to other triphenylmethane dyes.[6] Its use has been severely curtailed by authorities in England and Australia.[7][8] It is also very messy, staining skin and clothing. A 2001 survey of the members of the Academy of Breastfeeding Medicine (ABM) found that Methylrosanilinii chloridum [INN-Latin] is rarely (1 to 2% of respondents) used by breastfeeding experts for initial treatment of oral thrush and is very infrequently (3 to 4% of respondents) used for recurrent or persistent thrush.[9] ABM guidelines for treating Candida infection of the nipples state that an aqueous solution of Methylrosanilinii chloridum [INN-Latin] of less than 0.5% can be used for no more than 7 days on the nipple.[10] However, safer alternatives for treating thrush are available.[11]

Methylrosanilinii chloridum [INN-Latin] has caused oral ulceration in breastfed infants treated with 1% or 2% solution applied to the mouth and tongue for thrush.[1][2][3] A 2-week-old exclusively breastfed infant was treated for oral thrush with aqueous 1% Methylrosanilinii chloridum [INN-Latin] solution twice daily for 1 day. The parents discontinued it because they thought it was causing airway discomfort. After 2 days, it was restarted at 4 times a day. Cough and difficulty feeding developed after 1 day and the infant was then admitted to the hospital, ultimately requiring intubation.[4]