Spray practical skills before and after the intervention (n=80) The steps Before1 After 3-month intervention After 6-month intervention2 p1&2 n% n% n% Full steps 0 0 2 2, 5 52 65, 0 <0, 001 * *) Fisher's Exact Test Comment: Before the intervention, all 80 subjects did not correctly complete in all 4 skills, spray prevention and treatment of asthma.