The symptoms you are experiencing, redness, darkening, and sensitivity, are classic signs of topical steroid withdrawal and rebound hyperpigmentation from long-term Lumaglo use. To discontinue safely, do not stop abruptly. Gradually taper its application (e.g., from daily to every other night, then twice a week, before stopping completely). Meanwhile, focus on skin barrier repair: use a gentle, fragrance-free cleanser, a rich moisturiser containing ceramides, and apply broad-spectrum SPF 30 plus sunscreen daily. Consult a dermatologist, who may prescribe a non-steroidal anti-inflammatory cream (such as tacrolimus) or a mild topical steroid to help wean your skin off the cream without causing damage.