Patient's question:
Several times, after my son got the Hib vaccine yesterday, his arm where he was injected became swollen and red, and it's a bit hard. Why is this happening? Is it because the vaccine has become ineffective? Everything else about the child is fine. His arm doesn't hurt, and he's in good spirits. Should I take him to the hospital for a check-up in this situation?Doctor's answer:
Based on the situation you described, it is possible that the vaccination site may experience redness and swelling again after vaccination. This is a common side effect of the vaccine and will not interfere with its effectiveness. You can apply thin slices of raw potato to the affected area. Apply each slice for about 15 minutes and repeat the process multiple times a day. If the symptoms do not improve, please seek medical attention promptly. Always maintain a positive attitude, and I wish you well!