During my baby's 6th week, painless vaccine has been injected. During 10th week, shall painful vaccine be injected? Is it harmful to switch from painless to painful? suggestions please!!

You can switch between the two. However the discomfort for the baby is surely less in the painless option.

yes you can. just be ready if child may get fever or bodypain depends on vaccine.normal vaccination no problem infact seems if fever/pain it's more effective n helpful to boost energy n improve child immunity.