anti bac when?

[mushpea]

I have a bottle of the antibac hand stuff so that when the children sneeze they use the hand wash straight away to try and stop some of the germs spreading, should i be doing this after everytime they cough aswell?? my son has astma so when he gets a cold he almost consantly coughing and would end up constantly using the anti bac stuff!! I also look after a little girl who wont clear her throught but keeps doing silly little coughs evey couple of seconds , I do tell her to clear her throat or do a big cough but she just stubbenly stares at me ,
so should the use the stuff just after they sneeze or when the cough and when they blow their noses aswell?

[hello kitty]

Get them to cough onto their shoulder or into their elbow rather than their hands as these areas do not touch so many surfaces unlike hands.