Hello, Psyllium is a stool softener, it increases the bulk in the stool by increasing the amount of water in it. Yes, you can take it. It will help to pass stool with ease. You can breast feed your baby while taking psyllium husk it is not absorbed by the digestive system. It will not affect your baby. However, since you have pain, discomfort / swelling in one side of the anus you are suggested to get clinically examined by a gynae, you may need a minor repair or antibiotics for quicker healing. You can apply Pilex ointment in the area of the anus affected for relieve. Piles cure ointment for topical use is also effective. Neglect may lead to complications like hematoma. Get treated at the earliest. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Nupur K., General & Family Physician