I goggled it for you Shakey..
There seem to be lots of other people around the net with similar problem. This woman's question was answered by NetDoctor..
"Itchy nipple for three days
Question
I have had an itchy left nipple for three days, which is annoying me. What is the likely cause and how can I stop it?
Answer
Because you've only had this problem for a few days, I don't expect it is anything to worry about.
The itching may be due to rubbing, say on a rough material, or if you do exercise like jogging.
Itching on and around the nipple can also be due to a form of eczema, and will respond to mild steroid creams.
You could try some hydrocortisone cream 1%, which is available over the counter from the chemist.
If the problem persists, then you will need to get your doctor to check it out - but don't be worried, it is very unlikely it is due to anything serious.
I would try the hydrocortisone cream first, and if it does not go away, let your GP see it.
Yours sincerely
Dr Keith Barnard, GP"