Baby poop rotten egg smell(17 months old

My baby has been pooping soft stool for 5 days 3-4 times a day We went to check his stool it showing bacteria is there but doctor said continue to give medicine It started when we ate some cheese Im still breastfeeding on him Is there anything else I can do Or should i go hospital and check again ? Doctor told me if 4 times watery then we can go hospital But baby poop not watery its like mushy soft stool woth a smell Hopw you can help me momma #firsttimemom #firstmom #toddler