The antibiotics of choice for the treatment of Streptococcus pneumoniae pneumonia are anti-inflammatory drugs of penicillin and cephalosporins. Penicillin and cephalosporins belong to the reproductive phase of bactericidal drugs, which are more effective for the treatment of cocci. Penicillin class can be used amoxicillin or amoxicillin clavulanate potassium, cephalosporin class is mainly cephalosporin generation or cephalosporin II, cefadroxil, cefuroxime, cefaclor, etc. If patients are allergic to penicillin and cephalosporin, they can be treated with azithromycin, a macrolide, or levofloxacin, a quinolone. If there is no underlying disease of healthy community-acquired pneumonia, you can first eat oral medication to observe, generally observe 3 days if the symptoms improve continue to take medication, 6 days later review CT, if the patient has underlying disease may have diabetes or previous underlying lung disease, older may need to be quiet, but the general course of treatment is not too long, in about 7-10 days.