Nifurtimox mycobacterial capsules side effects after use include irritation of the gastrointestinal tract, such as the development of nausea and vomiting. It may also cause vulvar burning in women, as well as vaginal dryness and discomfort. 1. Stimulation of the gastrointestinal tract: the drug is an antibiotic drug, generally used to treat fungal or mold infections, vaginal use of the drug, when absorbed through the bloodstream may produce nausea, fatigue and other uncomfortable symptoms, generally a normal phenomenon. 2. Vaginal discomfort phenomenon: patients may be in the use of nifurtimox – mycotoxin capsules, leukorrhea secretion increase, but also may appear mild vulvar burning, vaginal dryness and so on. This drug is a prescription drug, must be standardized under the guidance of a doctor, not blindly use their own medication, so as not to delay the condition. If it causes extreme discomfort, it is recommended to stop the medication and go to the hospital for examination.