Combat Itching from Hair Systems

I wear a hair system and I would like to know how to combat itching

Itching may be caused by the inability to get a good wash. Can you remove the system and wash your scalp regularly? After a wash, are there abnormalities in the skin of the scalp? As you will note, I am starting to ask questions that require observations. Other than basic cleanliness, I would have to examine you before rendering an opinion.