I used this extract end of August to halt incipient bronchitis. It took about a week for me to completely stop coughing but given my weakness, she could not heal alone, the EPP is bound to something in association with vitamins, c ' is all I took. For my 2 year old, I did the same thing in association with Alvityl and Flixotide. It worked well and yet it was crowded. I take every day in preventing the coming winter, I will therefore take stock here in some time.