Hello Sir, Today my daughter has completed her 6 weeks & she got her vaccination also & my pediatrician told me about painless vaccination as painless vaccination has lesser side effects, so I agreed and it cost me a bit high, but I read few articles and reviews regarding the same, according to them painless vaccinations has lesser immunity as compared to painful vaccination. is it really true? or if it's true can we switch to painful vaccination on her next vaccination date?