<s>[INST] Hi doctor,my baby girl is 3 month 1 week and have been using Nan1 from 2 weeks of birth.From one month she had a spot on her chest but recently it has gotten bigger.I have taken her to the doctor and he diagnoised it as signs of vitiligo.her skin on her back is dry and has rash.the patches. Have spread on her face.please can I get advice on this,don t know if I should change her formula. [/INST] hellomain symptom of vitiligo is flat, white spots or patches on the skin.rashes can also be due to:~fungal rashes~scabies~eczemathere is nothing related with the formula milk what you are giving.Seborrhea (type of eczema) is also known as seborrheic dermatitis. it affects children under age 2 but usually infants up to 3 months.Scabies is a skin infection caused by the itch mites. Fungal rashes are skin infections caused by two specific types of fungi: tinea and candida. Tinea infections, also known as ringworm, are oval or ring-shaped lesions with normal-looking skin in the middle and an itchy, scaly, and slightly raised edge around it. Vitiligo usually arises between ages of 10 & 30 years, and its rare to be present in infants.treatment includes:SunscreensSun protection measuresCosmetic camouflage of skin patchesTopical Steroids (glucocorticoids)Topical photochemotherapy i would advice you to take a second opinion with a skin specialist. Hope this answer helpsRegardsDr. Shesh </s>