The history suggests as if washing powder is applied to her face. I hope this is not true, kindly elaborate. Also tell whether the lesions itch or not. Do her other body parts get involved?
If it is due to the alleged powder, it is contact dermatitis
. The possibility of Atopic dermatitis
should also be explored.
Presently you talked about some pus filled spot. At this stage it is better to seek dermatology opinion.
Dr. Ajit Singh