its a sigb that she is tired, sleepy or irritable :) dont worry!

I agree with Sheeba. Check her ears when she is deep sleeping.. if too much wax accumulation.. just clear it during your next checkup with your doctor.

it is normal, often baby rubs ear when feeling tired or irritated. try to put baby to sleep. rubbing ear can also signal ear infection, just check for any discharge or crying when ear is pressed(dont put anything inside ear)...