Been in the carpet cleaning trade many years now and noticed my health (chest in particular) is deteriorating.

Over the past few years I have developed a cough / wheezing which shows no signs of dissapearing.
I'm in my mid 40s, dont smoke and usually in general good health.
Today, I was talking to a pal of mine ( a fellow carpet cleaner)...he's got the same cough...for months and months.
It may be a coincidence but we both use the same cleaning powder...Extracta Superchem.
The tub comes with a warning sign X contains Sodium Metasilicate. I've done some research and the readings and results of toxicity on this chemical isnt good especially if inhaled.
The skin on my hands particularly around the knuckles is often red raw, sore and bleeds.
Can anyone recommend an alternative powder / advice which isnt so harmful ?
Many thanks.
TM