Hi there ~
I understand your concerns. However, nature has its own ways of dealing with one's weight, especially after a physiological process like childbirth. I believe that you will do well with exercise and using a healthy diet to reduce weight. Please consult a dietetics as well as an exercise specialist to cater to your needs to lose weight. Using a dry sauna
may help in reducing your weight, however there is no clinical evidence for the same in allopathic medicine
. I hope this helps answer your question. Congratulations on having a healthy baby and becoming a new mother!
Take care and have a lovely day!