Hi, I Have A 2 Month Old Baby. Initially I

Hi, i have a 2 month old baby. Initially i had sufficient quantity of milk but for last few weeks the quantity suddenly reduced. When i pump i dont even get 20-30 ml at times. I am having lactare tablets and galact granules to increase milk quantity as suggested by my doctor for last 3 days but still milk is less. Please let me know what is to be done