If you have been experiencing rectal pain for a month while breastfeeding, it is important to consult a doctor for proper evaluation and treatment. It is recommended to try using over-the-counter creams like Anusol Plus, along with non-pharmacological measures such as using wipes and addressing any constipation issues. If the symptoms persist for more than 14 days without improvement, it is advisable to seek medical advice to rule out other potential causes of the discomfort. Take care of your health and make sure to address any concerns promptly.