Extreme Cough

I have got a cough that could rattle the bars of hell.
The regular inhalation of my morning cup of tea at the antics of Sweary Bercow on Twitter probably doesn't help, but it's also probably to do with the volume of students and their combined viruses as the beginning of the new term.
Normally I can escape this by regular and frantic hand-washing, but a germ seems to have slipped through the net and taken up residence in my chest.
This morning I was going to record some guitar playing, which is OK because I don't need a voice to do that, but you do need energy and I haven't got that. I missed my evening class last night too, which is completely unheard of. Sometimes I wake up in my seat to the voice of the instructor saying 'Helen's fallen asleep' (Thursday's a busy day at work) but I always normally get there.
Looks like it's out to the chemist for some medicine, and a day in front of the TV watching Bargain Hunt and various cosy programmes that would drive me bonkers if I was feeling healthy.