I should know better, I de-seeded some chillies today to collect the seeds. I thoroughly washed my hands and under my nails.....or so I thought, until I had to visit the ladies.. So I washed with more soap,using a bigger nail brush....I wiped my lip.....
Its easily done with chillies , just lightly rubbing my eye when cutting chillies has caught me out a few times.
I did that some weeks back..........Jeez!! it felt like someone had stuck a red hot poker in my eye! Took a fair while to wear off, and stung like mad. Also went to the loo and got caught out too!
Best not to pick your nose after handling chillies either. Or after going to the loo, come to think of it.