If it is chronic prostatitis treatment with roxithromycin is recommended to use the drug for 7~14 days, if it is still not cured it is recommended to change to other kinds of antibiotics to avoid the emergence of drug resistance. Roxithromycin belongs to the class of macrolide antibacterial drugs, which have antibacterial effects on staphylococcus epidermidis, streptococcus, mycoplasma, chlamydia and so on. Especially mycoplasma chlamydia infection caused by prostatitis treatment effect is relatively good, but can not be used for a long time, the use of time is too long easy to drug resistance, and the chances of adverse reactions also increased significantly. If abdominal pain, diarrhea, nausea, vomiting, dizziness, headache and other uncomfortable symptoms occur during the use of drugs need to stop the drug in time, and go to the hospital for examination. Overall, there are more types of prostatitis, for the choice of drugs and the use of time, need to be based on the results of the examination under the guidance of the doctor, can not be blindly taken to avoid adverse consequences.