My Ds (21m) developed chicken pox on Friday. He's all crusted over now but started coughing quite badly last night and sounds a bit wheezy. He's bright and cheery between coughing and hasn't got a temp. I know you need to be careful with chicken pox complications but as this has come as the pox has improved I suspect he's just picked up another bug. Do you think I need to get him checked out? We're on holiday but there is a walk in centre nearby we could go to.