Respiratory tract infections are often caused by bacteria, viruses, mycoplasma, chlamydia and other pathogenic microorganisms to inflammation, respiratory tract infections with what antibiotics to consider in conjunction with the specific condition: 1. If you are considering a combination of fungal infection, you need to use antifungal, such as voriconazole, fluconazole, etc. 4, if you are considering a combination of mycoplasma, chlamydia infection, you need to use azithromycin, quinolone drugs and other treatment.