would you worry and/or visit the doc if

[linzoid]

your five year old seemed o.k in himself but was coughing up phlegm? Please advise mumsnetters

[twiglett]

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[kalex]

Agree with twig, would only take him if it was coloured or lasted more than 10-14 days

[gothicmama]

green = give more fluids
yellow = infected

[efmach]

Agree with Kalex - if it's been going on for a while and he's under the weather, get it checked out. Otherwise, if he is well, even with green or yellow mucus, let his immune system deal with it.