Sorry to hear this. My daughter also experienced this. She also had a history of eczema, so the pediatrician initially said that it was seborrhea dermatitis. After a couple of months of treatment, there was no improvement. Her hair kept thinning. I was then referred to a dermatologist who also said that it was seborrhea dematitis. So a few months later with still no improvement, I asked to be referred to an African-American dermatologist. Her diagnois was ringworm. I was distraught, because she went about 6 months of this with her hair constantly thinning. It did not look like typical ringworm, but after 6 months of treatment on oral medication, her hair grew back, and it is thick as ever now. So, if her hair continues to thin, I would ask to be referred to a dermatologist.