Can I wash my hair and take a bath in the first month?

Generally speaking, you can't take a bath from the first day to the third day of the first month, and you can take a bath at other times.

Due to traditional folk customs, it is said that the first to third day of the first month is the birthday of Vulcan. Every household respects Vulcan and avoids water, even splashing water is not allowed! There is also a saying that bathing washes away wealth, but this is just a superstitious saying, and it doesn't matter if you wash it. Because it is the birthday of the water god, if we take a bath in these days, we are afraid that we will be disrespectful to him, so our elders will advise us not to take a bath during this period. It's ok after the third day of the first month, but we should also pay attention to the time. Because of the cold in winter, it is best to take a bath when the sun is shining during the day, and not too late, otherwise the cold will not be good because of the low temperature.