<s>[INST] hi My one year old daughter has blisters in her head. they were first thought to be due to exposure to a pet or fungi and the treatment has not worked. theses blisters are spreading and are usually puss filled. any ideas. we have scheduled to see a dermitologist. [/INST] Hi...by what you quote I feel that it could be a pyoderma or skin and soft tissue infection of the scalp. Rather than looking to just treat it, we need yo also workup why she got it.Apart from treating it with antibiotics I would also consider working up for any underlying immunodeficiency.Regards - Dr. Sumanth </s>