"Extreme itchiness" refers to a strong and intense sensation on the skin that makes a person want to scratch vigorously.
Full definition
I have been using dye and fragrance free detergents for the past 5 or so years because I started having mild skin reactions (mostly
just extreme itchiness).
Demodex gatoi infection appears to be slightly more common than infection with Demodex cati, and is noted
for extreme itchiness.
Dogs with these conditions generally all have greasy, crusty, smelly skin but where there is Malassezia infection, there is
also extreme itchiness.
Symptoms
include extreme itchiness, skin thickening — giving rise to the yeast's formal name, Malassezia pachydermatis — a foul odor and hair loss.
The most common sign is
extreme itchiness on the rear half of the dog, particularly the area on the back immediately above the tail.
Most commonly, yeast
causes extreme itchiness, inflammation of the paws, build up in ears which can lead to infection, and in severe cases red sores and hot spots.
The good news is that because felines aren't natural hosts for these mites, the infestations,
extreme itchiness and frantic scratching should last for a just a short time before the condition resolves on its own.
Symptoms include facial swelling and
extreme itchiness, and possible breathing problems.
Usually the first symptom you notice will be your dog scratching his ears or shaking his head due to
the extreme itchiness that the mites cause.
Pruritus, or
extreme itchiness has been mistaken for a seizure.
Chronic allergies that don't go away and cause
extreme itchiness can be treated with Apoquel, a drug specially formulated for pruritis.
Flea allergy dermatitis Just one bite from a flea can result in flea allergy dermatitis, which leads to infected patches of skin and
extreme itchiness.
Trixacarus caviae (sarcoptic mange mite) can be very severe because they cause
extreme itchiness.