Suction device (a cut down syringe is ideal) - once clit engorged and erect, roll a tight elactic band down the barrel of the suction device down on to the root of the erect clit. This will maintain a throbbing painful engorged clitoris and make it protrude from under the clit hood, exposed to punishment implements without any covering. My own favourite implements to punish a clit in this state would be fresh cut chlliies, deep heat, a crop, an electric flex doubled over and a soft leather belt. canes can be used, but tend to be a little harsh, unless you want to leave your slave with a bruised clit. WOuld be ideal to put the clit enhancer on before you make her ride the sybian for a few hours, but only after a thorough sensitisation with crop / whip etc. Don;t want her to enjoy the orgasms without pain! An hours scrubbing with a stiff toothbrush will leave her ultra-sensitive ffor days, even once the clit ring is off. Not all female slaves have enough clit flesh to allow a clit ring to be placed, even after suction. Enjoy!

You may also want to try superglue, some types burn a little on contact so you may want to check it first. It will generally take a few hours before whatever is glued lets go and the remaining glue can be removed with hot water and nail polish remover on a cotton swab. Its a fun way to attach weights directly to the clit or my personal favorite is to glue a girls clit to the inside of her panties so as she walks and they shift they pull on her clit.

Another idea is also salt and/or sugar mixed into a paste and smeared on before playing. The crystals work as abrasives while the sugar makes very thing very very stick and the salt will cause the skin to become "curdled" for lack of a better term (its what happens when you stay in the water too long).

Hope these help

how long does it continue to burn after its removed?

does it itch or burn sir?

A bit of mint oil mixed into Orabase Plain paste.
http://drugsarea.com/Dets-Drugs/GelatinPectinandMethylcellulosepd.html
Sticks well to slightly moist areas. Blow air gently across applied area for effect. Good aroma. Keep out of eyes.

Mousetrap are good

Tea Tree Oil. At your neighborhood market. Make sure you try the same amount you are going to put on her to yourself first. I think it's pretty potent.

tooth paste, cinnamon oil,
-sand paper SCARY Emery board is all you need.
that and a drop or two of 'hot' sauce
dont forget the peppers
buy them fresh, & squeeze (careful)
stay with med hot ones
DO NOT USE THE HOTTEST WITH
ABRADED(wear away by mechanical action) SKIN

And, you could give her a real good STIMULI(and similar irradiation on,say, her wrist)
In the mean time neglect her clit(cover with cup if you must),
until her wrist heals real good 2-3 weeks
For the next two weeks apply aloe (softening agents)
then neglect the clit again.
Think of as torcher in its self.

Have fun

Try toe nail clippers and just clip it a little bit it will bleed and hurt her

Go to the food store and purchase a ginger root, bring it home and peel it, but knotch it at the wide end, then insert it in her and tape above the knotched out part to her above her clit and watch the tears flow. 

Master J

Small rubber bands wrapped around the clit.  a crotch rope.  Fine sandpaper in the panties or jeans and if your really into pain icy hot on the clit after you use the sandpaper.

 sandpaper hum?!

mmmm I have an idea...maybe I can insert it in my slave's panties when she wear jeans and she goes to work...

You could use an electric tooth brush with some thick body cream, or try rubbing some peeled ginger root on her clit while she is on the sybrian. Personally, i would prepare a figg ( ginger root butt plug ) to be inserted at the same time. Let me know how this works out.

Whipass

Sir,

     This slut humbly suggests coarse sandpaper rolled up, secured between the labia with adhesive or duct tape, then have Your slave'ride the horse' to orgasm, then apply the 'icy-hot' linament and make her ride again. Her 'ride' can become better discipline if You tape a small hairbrush or handleless toilet brush [stiff bristles]into her slit to work the inner labia and clit, with or without the icy-hot. Hope these humble suggestions are useful, Sir.

humbly,

jannelle simone

Yup, great advice for a real pain slut.

Sir,

     This slut humbly suggests coarse sandpaper rolled up, secured between the labia with adhesive or duct tape, then have Your slave'ride the horse' to orgasm, then apply the 'icy-hot' linament and make her ride again. Her 'ride' can become better discipline if You tape a small hairbrush or handleless toilet brush [stiff bristles]into her slit to work the inner labia and clit, with or without the icy-hot. Hope these humble suggestions are useful, Sir.

humbly,

jannelle simone