Hi, Can anyone help Please? Medichecks sent my blood test kit to me in France but they only included an envelope for 1st class post in the UK for me to return it. A nurse has taken the blood but how do I get it to them ? Can it be taken in hand luggage through airport security and posted in the UK or do I need to find a way to post it from France. As it's Sunday their helpline is closed. Can anyone advise me asap please ?