There are three things you can do to try and remove the smell:

Remove the areator clean and bleach it.

Remove the faucet soak in Iron Out for 24 hours and reinstall.

Last, if the above does not work replace the faucet.

Safe plumbing brings life and health giving water into our homes, business, hospitals and takes away death and disease causing waste.

Are you sure it is the faucet and not a smell coming from the sinks over flow?

Try pouring a pot of water down this sink (Get the water from a different location) and see if the smell appears

I saw this possibility in a previous post, so I tried covering the overflow hole.....same smell. I tried plugging the drain.....same smell. I even tried catching the initial water in a cup and taking it in another room before smelling.....same smell.

I'll try the recommendations from the other reply and see if that works.

Thanks

Good luck

Is it only the hot water or also the cold water? And does it go away after a few sections. Are you on a well.

Under certain circumstances with iron in the water and a harmless bacteria hot water can produce a sulfer smell.

From reading different complaints like yours it APPEARS that in some cases it will only produce a very small amount and that only collects at one place do to how the plumbing is aranged.