Also there is no itching or discomfort just the rash.
From the symptoms, it can be dermatitis skin, eczema, seborrheic dermatitis or psoriasis. Psoriasis is a non-contagious disorder which affects the skin and joints. It commonly causes red scaly patches to appear on the skin.
To confirm the diagnosis please get it evaluated from a dermatologist.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your dermatologist. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.