Help near cast-off smoke,please?

I stopped smoking 4 years and 3 months ago and now dislike the smell or anything related to cigarettes,in certainty it makes me sneeze in a minute.Anyway,yesterady I had to sit within the smoking area of a cafe while I wait for my husband to pick me up from grocery shopping (he took freaking long,more than an hour) because you can't really go inside into the non-smoking are beside your trolley.
Bottomline,now,when I exhale I smell cigarette,because everyone be smoking.What can I do to stop this feeling?is in that anything I can do?Help near cast-off smoke,please?
Get some saline nasal spray and rinse your sinuses out.
Use spearmint chewing gum as this prevents an oxidation-reduction reaction that occur with cigarette smoke and oxygen. Cigarettes contain several toxics, one of which is benzene and from my studies, the effect of chewing gum or chlorhexidine gluconate (mouthwash) does the trick....not vastly convenient though in public!
Give it some time. The smell will eventually fade. Right presently it's probably trapped in the pelt follicles of your nose. I know, it's knotty to get rid of that smell. I quit a year ago and I smell it for comparatively awhile after I've been exposed to it.