Hi - Yes the money is filthy and we always use anti bacterial hand gel that requires no water to clean our hands.
Also dont gulp freezing water as this can lead to stomach upset.
Alot of people also make the mistake of sitting in the searing heat then heading for their room and putting on the air con. The body isnt used to sudden extreme changes and this will make you ill as well.
antinal can be bought at any chemist. Make sure they charge you the correct amount which is about 5le a pack ( 50p ). If they try and charge more take the packet and point out the price on it to them. If they still try to charge you more tell them you will inform the tourist police. This normally works and you will get it for the correct price.