Also my first thought, but I have not been around anyone with scabies recently and it is not that easy to contract. Also, no one else I live with is afflicted with this condition. I also do not have the rash in all the most common areas for scabies which are the hands (especially b/t the fingers, the elbows, the knees, the armpits, and the ankles and feet.) Also, the rash tends to disappear if I don't scratch. However, I have considered being treated for scabies anyway just to rule it out.
You might want to get tested for scabies, but neem soap can treat fungal, bacterial and viral problems, so you might want to just get some neem soap and shampoo. You can get it at healthfood stores or on line.