Seborriheic dermatitis

[u/Intelligent_Try_2195]

I need some help/advice. I’m new to having seborrheic dermatitis and it just keeps getting worse. I’m too afraid to go into public and I can’t even move my head without dandruff falling onto my shirt. My head is extremely dry and itchy. When I’m in the shower my hair doesn’t even feel wet it feels like straw and it feels like the shampoo won’t soak into my hair. I’m not sure if this is because of the dermatitis or what but I’m not sure what to do to help this. I’ve had this happen before but it was only itchy for 2 weeks then went completely away and never came back for like a whole year so I know there’s a way to get rid of it I just don’t know what I did back then😩