UK ladies help please!

Emily
I am traveling to England at the end of June to visit my husband's family with my infant (he will be 5 mos when we go). My MIL has asked me to send her a list of supplies she can get for us. Can anyone recommend a good eczema lotion that I could get in the U.K.? And what nappies recommendations does everyone have? I'm going to ask her to pick up some sudocrem for nappy rash and Johnson's for bath time but I don't know what else to ask her for or what else I may need for my little guy. 
Thanks in advance!