You can use white sugar. However, it is usually better to use brown sugar to boil ginger syrup.

Brown Sugar Ginger Water has the effect of replenishing blood and is suitable for menstruation. Because of the lack of blood during menstruation, drinking more will have the effect of replenishing blood. Normally, if you drink too much of it, it may increase the amount of blood during menstruation, but overall it is still good for women.

Expanded Information:

Don't drink brown sugar and ginger water at night, the best time to drink brown sugar and ginger water is in the morning. is in the morning, because the morning because it can better play the effect of spleen and stomach warming.

Ginger is a yang food, and at night the human body is supposed to nourish the yin, if you drink brown sugar ginger water at night, it will be counterproductive, especially prohibited to drink before going to bed, because it is very easy to cause fire, so that people will have a feeling of excitement, stimulate the nerves and affect the quality of sleep.

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