Hi, I'm just had a sinus flare up now and the pain is horrendous because it's so severe. People who haven't experienced sinusitis don't realise how painful it is. Today I stood next to someone waiting to cross the road who was puffing away on a cigarette. I tried to hold my breath so as not to breath it in until I moved away from him as I am experiencing such pain. I don't always get sinus pain through colds or flue but get it instead ( I've come to realise) through inhaling steam when using a steam iron or through a pot cooking and steam escaping through the lid. I'm taking olbas oil and octravine .