I was using tedibar soap for my baby girl and changed to dermadew baby soap from then small pimples started to her now I changed to tedibar soap and yesterday my grandma without knowing she used my brother soap for her from then this had happened please suggest me something for this

A. Water-only baths without any soap, may seem like the gentlest way to keep your baby's delicate skin clean, especially when he's very young. But, whether or not you use only plain water depends on a few things. When it comes to cleaning your baby’s genitals and bottom, water alone may not be enough. Baby poo has a higher percentage of fats than adult stools. You'll need to use a mild cleanser or baby wipes to remove the fatty deposits from your baby's skin and to help prevent nappy rash. Rinse the cleanser off afterwards. If you give your baby an oil massage before his bath, plain water won't get the layer of oil off your baby's skin. You'll need a baby soap or cleanser to wash off the residual oil. You'll also need to think about whether you have a family history of eczema and whether your baby has signs of dry skin. Living in a soft water or a hard water area can also play a part. Within a few weeks of birth, your baby's skin surface changes from a neutral pH to an acid pH. This acidic film on the surface of the skin is called the acid mantle. It acts as a barrier to protect your baby's skin. Water-only baths work best if you live in a soft water area because the water also has an acidic pH.