my bb took 5-in-1 on month 2 and month 4; then 6-in-1 on month 6 (just 3 days ago). she did not have fever on the month 2 and month 4 vaccination, while she had little fever (37.7 degrees) on the night when she had the month 6 vaccination. i gave her one portion of medicine and she's fine after 1 hour.
i don't know if the 5-in-1 and 6-in-1 vaccination is really better. it depends if u want to spend the money or not... afterall, when i was small, i also went to 健康院 for vaccination and i still grew up healthily!! :-P