if it were me i would stop using the steroïd cream.It can make things sometimes (beïng mild here
) makes things more worse than better.
I'm not familair with homeopathic Cantaris.
I would go for the Plantain (but that's just me),Plantain has cooling,antimicrobal,antiviral and antimucus properties,is mild anti-inflammatory and antibacterial.You could try the tincture as HugsnKisses suggested and delute it the way she does,or you could make a strong tea (not a decoction or infusion) by making a tea from the leaves,let that sit several hours,while it does it also cools down,and use it straight that way to rinse the earea where it itches...
wear White underwear without colors...It's possible you react on the chemicals which is used to color fabrics and where underwear is made from,
wear Cotton undies,no no to nylon and such,
Your skin has to Breath hm?
Never use soap when washing the delicate private area
Best is splashing and rinse with water.When it is realy worse even that can hurt.Than you can try something else,Dead Sea Salt...Bring some water to boilling point,let that cool down to body temp,add some Dead Sea Salt in this,and if you have it on hand,two or three drops Propolis tincture and stirr gently with your hand,than use a washingcloth,don't sqeeze this,but rinse and wash the delicate area with it...Do this a few day and see what it does...the Dead Sea Salt helps cleaning and desinfecting the skin and has healing properties so does Propolis...
the delicate Skin in this area needs help to heal...Honey
Sounds crazy perhaps but Honey will help Healing the skin ... just a little on your fingers and Yently massage the honey over the area where it is so itching...
you also might take a look to the Cloth Pad's you use? Don't know which Cloth Pads you use or tampons?
As CW allready suggested,wearing no underwear for a few days so that your skin can breath would be great.But if that's not possible or you feel embarrising to do that there's another option
Man's Underwear...Sorry guys but the Boxer Shorts are realy perfect for us too (sometimes
Strings which lots of woman seems to wear these days can also costs us some trouble...try to avoid them too...
also you've said the itching is been stimulated by urination...This can mean because urine is Hot,so the Heath? Also urine can be acid,salt...To much intake,to much output hm?
and ....maybe worth to take a look to the Chakra? It's the Root Chakra where the urinary passages settles hm?Often when the skin itches it gives a burning/burned feeling,to cool this down to normal again it's maybe worth to take a look into the emotional part to hm?
Maybe it's also worth to take a look in Ayurveda dietery ?
sorry for the long post,and for sometimes maybe not the correct writing,
not only finding what causes it,but Nourishing Yourself and relaxing helps Healing,
if it were me i would get rid of the steroid cream and more try to Nourish the delicate area,
Hopes you'll find something here or elswere that will help you.You might think you're allone in this but that isn't so...Many Woman have this but don't talk about it.They often feel to shy to talk about it.And think they're doïng something wrong...
I have much Respect for you to bring this issue to an open forum and to talk and speak free about it.And i hope it will help and give confidence to other woman who also walks around the Mother with this and are to much affraid,or embarrased to talk or speak about it or to ask for help,