Unfortunately, melasma is a chronic condition and you can have relapses, especially if you are exposed to the sun frequently and/or on hormones. Your dark spots could also be coming back because you abruptly stopped using The Spot Cream, instead of slowly weaning off by using a maintenance cream, such as The Spot Cream Nurture, or because you were using The Spot Cream too frequently and caused a deeper pigmentation called “post inflammatory hyperpigmentation.”