I have the same situation. I use paper hankerchieves. I find them convenient and easily disposed in a public trashbin.
They find easily a place in my girdle or my pockets.
I don't know either the root cause of this phenomen but I suppose that it is related to sweating.
This may seem strange but have you tried those breath-right nose strips?
I tried them on a couple of long runs and it seemed to help. The moisture seemed to dry out before I had to blow. I saw a study that says they don't help your lactate threshold but....if they just reduce the number of times I have to blow.....
Instead of treating the symtoms, maybe you could try removing mucous forming dairy foods from your diet. I used to wake up in the morning unable to breath until I switched to rice milk and cut out cheese butter and wheat. Check out Chinese medicine definition of "damp forming foods". Changing my diet has totally transformed my life and left me feeling healthier. Best of luck. Chris
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