###Human: Is it advisable to give Natrum Phos to a 3-month-old for acid reflux? ###Assistant: Hi. Natrum Phos is a good remedy for babies suffering from acid reflux related problems. You can continue giving him one tablet twice a day (one in the morning and one at night). You will be able to see the gradual improvement in next 4 to 5 days. If your baby does not settle down in next seven days then I would advise you to seek the help from pediatrician to rule out any gastric disorder.