there are different types of salts , not every salt work on asthma , a helotherapist in
Vancouver told me, he has an artificial mine in
Vancouver that I had visited before 5 months, but artificial is artificial in effects too,and natural is natural, he import only Himalayan salt for asthma,so I practice different kinds of salts in past , in Toronto ,in Pakistan ,in Vancouver, but only Himalayan salt is effected on asthma that I visited in Pakistan
thankyou