They do aqueous cream with calomine, which doesn't dry on the skin, so is supposed to sooth for longer, although TBH, I'm not sure it helped a lot.
My DS's were Ok as long as they couldn't see the spots, so long sleeves and trousers.
Also , they both slept much better after a bath containing a couple of spoonfuls of bicarbonate of soda.
All the best - remember the worst of it only lasts a few days