My MIL told me to forget about taking a shower or washing my hair one month after giving birth or I will be plagued by headaches and rheumatism for the rest of my life. Any truth to this?

This practice might have made sense in the past, when new mums didn’t have the luxury of taking a warm bath, or they lived in an environment which is cold or chilly. These days, even TCM experts don’t recommend this practice in hot and humid Singapore.