My baby has a rash in her neck folds. what could it be and do i need to put anything on it?

Common causes...: ...Include atopic dermatitis (a type of eczema), seborrheic dermatitis, or a yeast infection. There are other less-probable possibilities as well. Without more details about the rash and symptoms i can't be more specific. You can try 1/2% Hydrocortisone cream, but that will not help if it's a yeast infection. See your pediatrician or a dermatologist for a precise diagnosis.

Rash on neck: A rash in the folds of the neck of an infant is often caused by moisture and skin touching skin. It is one of several possibilities intertrigo, atopic dermatitis or seborrhea. I would take care in drying out the area well and put corn starch powder on it to keep it dry. I f it is not improving you may want to see your pediatrician or a dermatologist to see if you need a mild steroid cream.

Intertrigo: Very common in babies , seen in between folds- neck , armpit areas, groin , behind knees and ears. Due to moisture and irritation . May be mild to very severe (very raw excoriation). Need to keep areas dry. Anti fungal creams usually help.