Any ideas. The last one I have tried is called Organic Children, bought online. It was fine last year, but now he is itching on his neck and inside his elbow and has come up in rash again.
Have tried most of the children's sunblocks available from Boots, Tesco's etc all with the same result. He used to suffer from eczema when younger, and though this has gone now these sunblocks all seem to make it come back. We have even gone down to SPF15 with no joy.