wellcome to healthcare magic.
well first thing is make sur that she does not have a the problem of dandruff
and lice infestation
.this problem can occur due to excessive itching.
for itching start with tab cetrizine
10my 1/2tab daily at bedtime.
tab amociclav 375mg three times a day after meals for 5days
+alternate day bathing with pottasium permanganate water.take precaution that it does not enter eyes and ears.