Hi,
you could do some volunteering at the big public hospital- CHUV in lausanne -they have a volunteer service.
http://www.chuv.ch/chuv_home/chuv_pa..._benevolat.htm
or contact the Vaudois Volunteer Association
Av. de Rumine 2 1005 Lausanne Vaud / Suisse

021/312.13.14

021/312.99.03
http://www.benevolat-vaud.ch/compone...rch/Itemid,24/
You might want to see if one of the English speaking Churches eg. the Scottish Kirk in Lausanne needs help with any of their activities.
regards
Jo