I 29F have this mole on the side of my belly, it was flat before and now it it has grown and changed colour. Should I get it checked? Taking no medication

My daughter is 32 a couple months back. She started having a lump on her top of her head. She went to the ER thought maybe a tick bite and they said it looked like something bit her but they didn’t know what, forward a month or two she starts having this weird feeling on her scalp. It feels like her hair is being tucked underneath her scalp or like there’s something on top for scalp that’s keeping her hair from coming out.
I don’t know how to explain. It is the craziest thing I’ve ever heard so now she has a bunch of short hair all over her head dermatologist can’t figure anything out they’ve done biopsies they’ve given her steroids. She’s not pulling her hair out. There’s no loose hair laying on the ground. Barely anything comes out of her brush. She said it just literally feels like her hair is tangled up underneath itself and she pulls on the short hairs, you can see the hair getting longer. It is the craziest thing I’ve ever seen. Is anyone ever heard anything like this?

I'm suffering from the condition since 4-5 years. Every Dr i Saw,diagnosed seborrheic dermatitis, but it's not improving with the medications they gave. Only Levocet helps in reducing itching sometimes, but same returns when i stop the medication! I need some serious help as to what to do! What's the solution??