During postpartum hair loss, it is not advisable to perm your hair, as perming can accelerate hair loss. The process of perming involves the use of chemical agents, which contain toxic substances, including heavy metals. These can irritate the hair follicles and cause severe hair loss. Additionally, during breastfeeding, the toxic substances from perming can penetrate the scalp and enter the bloodstream, and then make their way into the baby's body through breast milk, causing adverse effects on the baby. The chemicals used in hair perming can also potentially cause allergic reactions in women, and if the baby comes into contact with these substances, they can also trigger allergies. Therefore, for the health of both the mother and the baby, it is best to avoid perming hair at this time.