Scrotum skin has turned white (like paint or whiteout) in some areas. No itching. Do not have psoriasis or eczema. Is this serious or will it resolv?

Scrotitis. Certainly it can be distressing to have a discolouration on skin on any part of your body especially the genitalia . It is likely that is what we are dealing with but a fungal infection certainly meets the description but could also meet other pathology such as psoriasis i highly advise a proper physical exam by a qualified urologist.