So anyone that knows me knows that I'm a very clean person, my house is always clean. I have no animals, I make sure…

So anyone that knows me knows that I'm a very clean person, my house is always clean. I have no animals, I make sure avoid people that have lice or could have, the last week my head has been itching non stop! I have look so many times and I see a little bit of dandruff (comes of easily lice eggs don't) I have been scrubbing my head with head and shoulders which is only making it worse, my moms coming over to go through my whole head to make sure I don't have lice, cause I have OCD and will probably have a emotional break down if I do! I had it when I was a kid and it was horrible my hair is almost Down to my butt so it would be devastating , I doubt I have it though. So anyways! Anything I could try to help relief the itching?! Any shampoos I should get? Please help. 😩