Any gentle cleaner you have you would use on you you can use on her...
Nothing with "grit" in it....
Warm water and a soft cloth...a body wash product, pH-balanced hair care product, dish-washing soap, even liquid hand soap.
Even using something like Excalibur for sheath is the same principle...gentle cleaning.
The secret is rinsing all residue away completely....lots of rinsing.
Those were some of the products I used on my mare years ago and never had a negative reaction on skin or threat from her that it was to strong on her sensitive skin.
🐴....

 

Either equiderma sheath/udder wash or Excalibur sheath cleaner are good specific cleaners. They rinse nicely. Equiderma also has some bug repellency- but not a ton.

But honestly, I just continue the mild shampoo I am using to wash the entire horse including her udder. I wouldn’t do that to clean a gelding.

 

I don't even use a wash - just warm clean water and baby wipes. Keep going until they come back clean. I tried sponges, washcloths etc 1) she hated their texture and would tell me off and 2) could never get as clean as I do with baby wipes. I then slather on sudocrem (zinc/nappy rash cream for babies) literally on all the soft skin, udder and belly button to protect from flies. Because sudocrem so thick I wash her every other day to get the old stuff off and don't like to use any products that might upset her ph. It really is only while the midges are hell otherwise just check regularly, wash only as needed. I don't have a hose - another reason I can't soap her up because rinsing her properly up there would be a nightmare. She is squeaky clean now, never has crud and 10x more comfortable. I've made a promise myself to be more on top of it during the muddy weather too.

 

I either use a really soft cloth like the ones used to wash cars with and soak it in warm water or I use a baby wipe (no scent, no dyes etc) after a ride. I carry the baby wipes in my trailer just for that purpose.

 

I use baby oil and baby wipes. And gloves for me because that black stuff is like tar.

 

Ivory - rinses off great

 

It can be seen as a bit of a blessing, because it's something that you can do for your horse, other than offer food, that really pleases them and gets them to see that being with YOU is a good thing. I nice scratch there, if appreciated, makes a great reward.

 

Just fingers.

 

Thank you everyone for the advice/suggestions. I ended up using some Dove sensitive skin body wash then used some aloe mixed with a little bug spray. She was so happy after I was done that she kept giving me kisses.