Cephalexin causes thrush. . . . . . Take this medication by mouth as . . . . . This medication has been known to rarely cause a . of 250mg antibiotic (amoxyllin) in 2 days can cause thrush . . . . . . . What causes a yellow tongue to occur and what can you do about it? The tongue is . . low levels in milk that are not expected to cause . only one, it is possible to have similar infections in the mouth causing Thrush . . . . . . only one, it is possible to have similar infections in the mouth c... more