this is an extreme case scenario, and will only create unwanted panic if not read properly.

http://www.pharmweb.net/pwmirror/pwy/paracetamol/pharmwebpicasthma.html

http://www.nhs.uk/news/2008/09September/Pages/Paracetamoldoesitcauseasth...

Also,

The researchers say the findings do not constitute a reason to stop using paracetamol in childhood as paracetamol remains "the preferred drug to relieve pain and fever in children".

The researchers however stress that their study does not prove paracetamol causes asthma and they say the findings do not constitute a reason to stop using paracetamol in childhood.

Please do a little bit of research on medical articles, before blindly posting them. At least google them, to see if there is a complete version of the article available on a medical journal, and not just what some reporter could cram into his column.