Does the subject want to ask, "It usually takes a few days to get a headache after drinking Malaysian 29 coffee"? Three days. According to China Health Network, Malaysian 29 Coffee contains a lot of caffeine, and drinking more water can promote metabolism in the body. After 3 days, the symptoms of headache disappeared after caffeine was metabolized in the body. Malaysia 29 coffee can regulate endocrine and balance yin and yang.