You are right ,its a Diaper allergy known as Diper dermatitis. Changing the diapers might help. But you should remember skin in the diaper area should be kept as dry and as free from irritants as possible. Frequent diaper changes and the use of diapers with adsorbent gel material are useful means to prevent the diaper dermatitis. An emollient or paste may be applied as a barrier from irritants with diaper change.

For more severe form of cases like you said it has developed to erosion or ulcer like. You might need some low dose corticosteroids like say 1% Hydrocortisone applied 2-3 times daily followed by some emollient. And when lesions subside corticosteroids must be stopped. I would suggest you visit a dermatologist for more suggestions on using emollients and corticosteroids. Don’t try to buy yourself and use. It may harm your child.

First let me welcome you to DermaTalk. First thing to do is just prevention from further damage. You can use cuticle oil frequently or even daily if your nails are flaky and brittle. Don’t cut or tear the skin or cuticles by yourself as they help in protecting the growth center of your nail.

Always remember to apply a hand cream after you wash your hand, as some soap makes nails very dry which results peeling and become brittle. Yea Nail polish does protect the natural nail but remember to remove it as soon as it starts to chip. don’t peel off nail polish, as this might also result in removal of the top layer of your nail leading to further damage. Have your nails manicured on a regular basis, usually every three to four weeks to make sure that your hands and nails remain healthy.