I Have SERIOUSE DRY SCALP HELP..!?

Okay well im 12 :// n i hav dry scalp and like i feel little red dots like one behind eAch ear and one in my forehead n thats where it itches :// n ive been usin dandruff shampoo supposly its like head and shoulders says in the shampoo well its realy weird n embrassasinqq bein wit frans n scratchin my head bvz i dnt want dem to think its lice or anythin n i want it to stop bcz i hate how it itches scratch one part n den eerywhere gets itchy please help mee wit good answers thank yew and i take showers not that hot