Possible Causes, Symptoms, and Treatments of Dry Dog Skin. Symptoms: Bites from parasites can irritate your dog’s skin, and some dogs can have an allergic reaction to the parasite’s saliva. Excessive scratching and biting are the primary symptoms, and with fleas, you may see a specific focus on the back and tail area.
https://www.petcarerx.com/article/7-common-causes-of-dry-dog-skin/1444
Skin Spots on the Face. Most causes of spots on face are harmless. They can be a variety of colors including white, red, black or brown. Common causes include cumulative sun exposure, acne, and skin tags. Keratoacanthoma (hyperkeratosis) is a lesion that grows rapidly, usually on areas exposed to the sun.
http://www.skin-care-health.org/spots-on-skin.html
Signs and symptoms of dry skin depend on your age, your health, where you live, time spent outdoors and the cause of the problem. Dry skin is likely to cause one or more of the following: A feeling of skin tightness, especially after showering, bathing or swimming. Skin that feels and looks rough. Itching (pruritus)
http://www.mayoclinic.org/diseases-conditions/dry-skin/symptoms-causes/dxc-20248892
Dry skin, Skin bumps and Skin rash. WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms dry skin, skin bumps and skin rash including Chickenpox (varicella), Folliculitis, and Hives. There are 29 conditions associated with dry skin, skin bumps and skin rash. The links below will provide you with more detailed information on these medical conditions from the WebMD Symptom Checker and help provide a better understanding of causes and treatment of these related conditions.
http://symptomchecker.webmd.com/multiple-symptoms?symptoms=dry-skin|skin-bumps|skin-rash&symptomids=86|206|185&locations=68|68|68
Less often, the cause is internal - a health condition, menopause or genetic predisposition is making your skin dry out. While patches of dry, itchy skin can appear anywhere, it's most common on the arms, hands, lower legs and abdomen. Dry skin is often felt more than it's seen, but on some people it can be noticeable and embarrassing. For many black people, dry skin is a special concern, since the flakes of skin can look grey.
http://www.webmd.boots.com/healthy-skin/guide/causes-dry-skin
Cause #5: Cold weather. 1  Symptoms: Cold or windy weather -- especially when combined with the dryness caused by indoor heating systems -- can really take a toll on your dog. If their dry skin is caused by seasonal changes, you will see an onset of symptoms like itching and flaking as the weather begins to turn.
https://www.petcarerx.com/article/7-common-causes-of-dry-dog-skin/1444
A common complaint is the appearance of white spots on skin. Potential causes include: Vitiglio: Skin condition where the skin loses pigment or color. Fungus (e.g; tinea versicolor)- A fungal infection can cause white spots on areas such as the back and chest.
http://www.skin-care-health.org/spots-on-skin.html
Dog Dry Skin at a glance. 1  1Dry skin is itchy and uncomfortable, and dogs will scratch, lick, and bite to relieve their symptoms. 2  2Dry dog skin may appear red, flaky, scaly, or otherwise irritated. 3  3There are many causes of dry dog skin, and the treatment will depend on the cause.
https://www.petcarerx.com/article/7-common-causes-of-dry-dog-skin/1444
Eczema (child) Eczema is a common cause of skin rashes in children, causing redness, bumps, swelling, itchiness, and more. Actinic keratosis Actinic keratosis is scaly or crusty bumps that appear on areas of skin that get a lot of sun exposure.
http://symptomchecker.webmd.com/multiple-symptoms?symptoms=dry-skin|skin-bumps|skin-rash&symptomids=86|206|185&locations=68|68|68
For many, dry skin is not a sign of a skin condition or disease, but is simply caused by harsh soaps, itchy clothing, misusing moisturiser, and long, hot showers. But the medications you take - and even medical conditions such as diabetes, psoriasis, hypothyroidism, and malnutrition - can also cause severe dry skin.
http://www.webmd.boots.com/healthy-skin/guide/causes-dry-skin
what causes dry spots on skin
Harsh soaps, itchy clothing, misusing moisturiser, and long, hot showers cause dry spots on skin.  Harsh soaps, itchy clothing, misusing moisturiser, and long hot showers are causes of dry spots on skin.