The time it takes for the melanin deposits left by cat moss to subside varies depending on individual differences, severity of the condition, treatment, and personal physique. Generally speaking, if the condition is mild and treated promptly and effectively, the melanin deposits may gradually subside in a short period of time, which may take 1 to 3 months.

However, if the condition is more serious or has not been treated promptly and effectively, it may take longer. It takes time to subside, maybe even a few months to a year.