Hi Stu,
Glad you escaped the Lurgy this time!!
I'm a T1 30+ years now, and i'm no doctor but i can tell you what i use for cold remedies.
It's always advisable to take sugar-free options if possible. A lot of cold remedies have added sugar, watch out for cough syrups and throat lozenges, they tend to be loaded. Anything in pill form such as Lemsip/Beecham's capsules, paracetamol and decongestants tend to be safe, but check the packet for the added ingredients, as each brand varies. If in doubt, you can always check with the pharmacist of course.
As a T1 i have often used the sugared off-the-shelf versions (though the pharmacist can't let you have it if they know you're diabetic!) or i've added honey to a Lemsip for example, and adjusted my fast acting insulin to account for it. I wouldn't suggest this unless you're confident about dose adjustment, but as Mary Poppins would tell you 'a spoonful of sugar helps the medicine go down'!!
Other than the sugar content, i don't believe there are any other things to watch out for, but maybe somebody else can add to this...
Stay healthy!
Anni
