"Why is my arm still painful a month after receiving the HPV 9-valent vaccine?"

One month after receiving the HPV 9-valent vaccine, the arm still hurts. This could be a vaccine reaction or a result of local infection. It is recommended to seek medical attention and follow doctor's instructions for treatment.

1. Vaccine Reaction:

After receiving the HPV 9-valent vaccine, the injection of the medication into the body may chemically irritate the local tissue in the arm. Pain duration may vary among individuals due to different physical constitutions. If there are no symptoms such as redness, swelling, or fluid discharge, no special treatment is usually required. This is likely due to the vaccine reaction, and most people will gradually experience relief within several weeks.

2. Local Infection:

If the arm still hurts a month after receiving the HPV 9-valent vaccine, accompanied by symptoms like local redness, swelling, or fluid discharge, this may indicate a local infection. This could be caused by coming into contact with water too soon after vaccination or frequently touching the injection site with one's hands. It is necessary to promptly consult a doctor for antibiotic treatment with medications such as Cefaclor, Amoxicillin, or Cefixime, as prescribed. If an abscess has formed, surgical drainage may be required to cleanse the pus, followed by further antibiotic treatment.