Lomela cream is a triple combination of hydroquinone
It’s used to reduce hyper pigmentation.
Rationally it should not be used as fairness cream.
Mometasone is a midpotent steroid.
It has various side effects over skin especially facial skin.
So long usage is not advisable.
1yr is quite long.
So you have to stop it.
But it would be gradual.
Use lomela in reduced frequency & then can be stopped.
To guide you properly I have to know the exact frequency of recent use & your skin condition at present.
So please consult a dermatologist