This could be anything from an allergic reaction to a skin infection to cancer - a veterinarian would be able to examine your dog and give you a much more definitive answer. You should make an appointment shortly.
This is likely dermatitis - inflammation of the skin - although the exact cause of the dermatitis can't be identified from your description. You should have this examined by your veterinarian, as it may take antibiotics, antiparasiticides or flea/tick medication to clear it up.
I think you should see a vet
Sounds like you have Psoriasis. Look it up.
scabies
Erythematous folds just means red folds. Erythematous simply means red.
Yes
Symptoms of congenital fifth disease include bright red rash on the cheeks; lacy, red rash on the neck, trunk, and legs; joint pain; fatigue; and, malaise.
a flat, red rash is caused by simple chafing of the diaper against tender skin, initiating a friction rash. This type of rash is not seen in the skin folds. It may be more pronounced around the edges of the diaper, at the waist and leg bands
poison ivy or oak
Answer See a doctor immediatly!!
No, red and white Scottish Folds are not that rare.
I tried some for the first time, now have a red rash on my side, the only thing I can think of is it came from trying the frog legs
go to the doctor
The rash could be many different things. Some of the possible things may include poison ivy, eczema or a heat rash.