My Son Who Is 5 Month 15 Days Old Having

My son who is 5 month 15 days old having loose motion from past ten days as per dr suggestion took 5 days ofm oral suspension twice a day and bacillus clausii twice morning and eveningx loose motions stopped on fourth day and he was alright 5th ,6th day after giving him bisleri mineral water first time he did started loose motions again ,dr said continue same medicine for three days on third day he is still doing ,should we wait till medicine complete or will consult.