you'll need a clear band aid, foundation, tweezers, (optional) bronzer if your dark skinned, scissors, blotting paper try to get white or grey and concealer.
* so your gonna cover up the blotting paper with your foundation very lighty and cut it into a square enought to cover the piercing then cut the band aid into a oval shape and put the blotting paper on it then just simply cover yout nose piercing. bronzer is used to cover up the blotting paper. After eveything is done just put on makeup like normal
Is the piercing healed? If so, put a clear retainer in it while at work.
If it's not healed, you could try putting a bandaid on it.
Just cut the bandaid to fit over the stud.
But if it's a ring, you can't hide that.
My sister just got her nose done and her work won't allow it, so she gets those small round clear bandaids from the store to wear over it at work.