Poor girl is allergic to everything!

I'm not going to necessarily blame Nylon -- however, she could be super prone to yeast problems! 

There are homeopathic anti-yeast preparations (I think Boiron's is called "Yeast-Away" if I'm not completley wrong - it's a suppository but it works systemically and I would wonder if it would help. 

See anything like nylon will keep heat in and prevent air from circulating. 

 How much does she weigh?  Benedryl is dosed 1-2 mg/lb body weight given 2-4 times a day. 

But have you tried using homepathics for allergies?  Apis works well on dogs as does allergy blends (Heel makes a super good one, as does Hylands).  Email me - I use homeopathy a LOT with my dogs.  And I can tell you things that have worked for mine).

She gets 50mg of Benedryl twice a day because she is 51lbs.  She only keeps her harness on when we go for long walks or for training, usually 30 minutes to 1 hour at a time.  I keep it pretty loose so it doesn't rub too much, so I don't think it's preventing air flow.  Sometimes she gets red spots after playing on the carpet for a long time, so that's another reason why I'm thinking it's a nylon allergy.  I wouldn't mind trying homeopathic treatments for her allergies, but maybe next season.  The Benedryl is working just fine for now and I don't want to mess with it too much and keep changing everything.  We just switched to a bison based food as a precaution (and I wanted a better quality food). 

Would it be possible to put moleskin just on the areas of that have direct contact with her body?

I never thought of moleskin.  To be honest, I'm not sure I know where to get it or how to put it on the harness.  I did email Lupine to see if I could use iron transfers to put lambs wool on it, but they said the nylon wouldn't take the heat.  I'll try anything- tell me more about this moleskin

If were nylon then EVERY part of her that ever touched nylon would be raw, oozing and sore.  Every bit of skin that contacts your nylon carpet would be sore.  Not just a spot or two.

However, it is far more likely that something*you* humans have walked in and then have walked across the floor which has an oil that has stuck to the carpet **that** would cause spotting on the dog (i.e., only the contact areas). 

Honestly, it's almost always natural fiber/plant material or metals or chemicals that are contact allergies.  But contact allergies cause soreness or weeping blisters on *contact* -- so you don't have a contact allergy on one part of your body and not on another -- does that make sense?

But that allergen will last darned near freakin forever!  (can you hear the frustration in MY voice -- I have several contact allergies and have had several dogs with them). 

For example - you go hiking in the woods and don't even realize you've walked thru poison ivy or poison oak,  and you come home and kick your boots off into the back of the closet.  That was last October.

But in August of next year, you decide to clean the closet and you haul everything out, the cloud of dust makes you sneeze and you itch your nose.

Later on, you discover your right hand has tiny little blisters on it AND under your nose where your index finger caught your sneeze! What the heck?

You got poison ivy from the boots you touched that walked thru poison ivy last year.  But you didn't get it "all over you" ... just those pieces of skin that got touched. 

Or maybe your hand didn't break out at all -- but maybe you just grabbed the inside of the tops of the boots with your hands but the cuff of your sleeve brushed the outside leather of the boots so when you sneezed onto your sleeve your *nose* is all that broke out.  Try figuring THAT one out.  I have tiny little bumps on my nose -- and they itch like fire so what could THAT be?  yep - poison ivy from 2d or 3d contact.

The inside of the harness if it's "loose" could have gotten rubbed with a plant (she plowed thru grass outside and it rubbed under the harness?) OR when one of the humans in the house sat down she rubbed against your shoe or pant cuff where there was some plant oil on it.

"plant oil" can be anything from a grass from your lawn (St. Augustine sod has at least 2 contact allergens built into the root system), to the Wandering Jew leaf you stepped on at work from the secretary's desk near yours and it rubbed onto your shoe and you took it 'home'.

So contact allergens can *look like* some massive widespread thing that only affects tiny areas of the body-- but in reality usually it's some very specific substance that got transferred ... sometimes a couple of times like leaf to shoe or pant cuff to carpet to dog).

If you're interested I can actually tell you a 'test' you can run to narrow down the substance specifically.

I've only bought moleskin for myself for hiking blisters, or that type of thing. I bought it at a store like Walgreens, but I'm sure you could find it at just about any store like Walmart, Target, etc. It's usually in the bandaid/first aid section. It has adhesive on one side, so assuming it'd stick to the nylon or whatever the material is, it might help. What made me think if it is a friend of mine uses the Gentle Leader for her lab and it was rubbing a sore on the dogs nose. She put moleskin on that part of the halter and said it took care of the problem.  It's certainly an inexpensive option to try. I'd love to hear that it works for her. I have an allergy girl myself and I know how frustrating it can be.

One of the first things to try if you suspect a contact allergy from the carpeting is to wash it in a degreaser (carpet care companies do have that specifically) -- or even washing the harness in baking soda and water or putting it in a lingerie bag in the washer with half the normal soap you use and 1/2 c. of ammonia in the wash water.  That will get it both washed AND rinsed very well. 

My point is -- nylon *could* be a contact allergen but it's usually way down on the list - but things like wool, and other fibers would usually be far more apt to be a contact allergen and there are numerous things in your garden that could be -- the short list off the top of my head:  St. Augustine sod, wandering jew (any one of 100 varieities indoor and out), night-blooming jasmine, poison oak, oregano, basil, parsley, etc. (any green plant with an oil that is released when it's bruised is likely).

Metals -- zinc or cheap aluminum (like the things cheap dull silver doorknobs, or the tracks of doors/windows, etc. -- those can be contact allergens.  Certain papers (for me to pick up a manilla file folder actually HURTS my skin and I'm a freakin legal secretary *sigh*) have acid in them that can be a contact allergen. Newsprint, etc.