I use skin whitening cream but when I skip it I feel itchiness so now I can't quit using the cream? (Photo)

I started using Sandal whitening cream (PCSIR aprroved) 3 years ago. i am 18 now. Whenever i forget applying it for 3 or 2 nights I feel itchiness on my face and my face looks stale, but when i use it regularly then the itchiness disappear. I can't stop using otherwise i will look ugly. What should i do now? I am not rich enough to consult skin specialist. My skin is so fresh now and i avoid sun exposer also but People say It will cause damage on my skin one day.

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