My problem came a few months later. I realise whenever I lack water or get in contact frequently with water and detergent, my hands would start to dehydrate, peel then crack eventually.
To mitigate the problem, I resort to frequent moisturising of the hands. It helps to reduce dryness and onset of crack. But, when cracks appear, an effective method to heal my hands is by applying Fucicort cream. I've tried a few creams but this one work the best.