Does anyone have any experience of this? My DS(12) has had a cough for 2 weeks. It started off dry but then went phlegmy. Stuff he is coughing up is clear. Last night he said his throat had started hurting. The pain has woken him up this morning and he says he feels unwell and achey but he doesn't have a temp. Is this just another bug on top of the one he already has? The cough has been a really bad one with lots of coughing (loads last night) but he has felt OK until now