my daughter is 7 months 22 days now. She used to rub her left ear mostly.. is there any problem to her? We had gone to pediatrician to check her ear.. but there is nothing in it no dirt, no water droplets even no dust.. so why she used to rub her left ear? when she sleeps she doesn't rub, i applied coconut oil many times but it didn't work so well. so parents are suggesting to visit skin specialist??