Hi, Eve! I can recommend a hair growth laser for you. It's good for post-partum hair loss. You can see the results in just a few months of sessions. It's pain-free, and there are no side effects. If you are in Singapore, I can recommend a good clinic that offers that kind of service. It's Zion Aesthetic Clinic. You can check their website and book an appointment.
https://sg.theasianparent.com/6-natural-remedies-for-postpartum-hair-loss