@LadyAmani
There are a variety of Clays. Bentonite, Rhassoul, Pink Moroccan, etc.....
Not familiar with
Mud washes, but they might have some of the same cleansing and exfoliating properties and the ability to draw out impurities.
A good tea Spritz should help with the itches and might be very healing.
AVG or AVJ might help as well.
However, an over the counter shampoo for dermatitis will give you immediate relief from the flaking/itching/soreness like Nizoral or something like that.
Again, if you choose to use it, make sure you condition, condition, condition.