After my last post the pharmacist switched my back to Activis levo, which I haven't had for over 2 years.
Now I look back my persistent cough began at around the time they switched me from Activis to Mercury Pharma 2 years ago. I have had a low lying tickly cough ever since and it was only when I was switched to the new TEVA levo that the symptoms suddenly turned into full blown hay fever. Cough, sinus problems, sneezing.
The Teva tablets are double the size and therefore must need more binding fillers - on researching it I read that they use acacia gum as the filler - hence the increase in symptoms.
So nearly 3 weeks on from the switch to Activis - they cough has gone! I don't want to speak too soon - but I am very hopeful!