Can i get alot of jobs with a tiny tattoo on my neck if i can put a plaster over it?

Its only four letters, nothing big really, if i put a plaster over it would that be ok if i went for a job interview?, i have worked in construction for a few years, it doesn't seem to be a problem in that kind of job, its other jobs that are making me think i have made a mistake, i have been knocked down with the recession, but i am trying to find jobs in different areas of work, and maybe head back to college to better myself a little bit more, any help would be great, thanks in advance