For a few days now I've wondered whether my DD has been teething, although no sign of any yet.. she's 16 weeks. Well, she never slept a wink last night & I thought it was teething pain so kept giving her calpol & teething gel. As soon as daylight broke through, we could see she was covered head to toe in excema! It had cleared up, with yesterday being her best day ever... only to get worse than ever at night. Why is this? It's heartbreaking to see her suffering. What can I do?