Ooh I've not heard of those! I'm feeling much better but still have a slight night cough. I used Fez non medicated nasal spray in the shower before bed and in the morning which sort of cleans out the nasal passages. I also have a ventilin inhaler. I'm not asthmatic but am prone to phlegm and fluid build up in my bronchial area so my dr recommended the inhaler as it breaks up phlegm. It works a treat but I have to be prepared to, ahem, cough it all up. But better out than in!