My Dog Itches All The Time, But Hasn't Got Fleas- What's Wrong With Him?

First of all you need to be absolutely sure that your dog hasn't got fleas. If you have bought an over the counter flea treatment from a pet shop there is a chance that it may not be as effective as one which is only available from a veterinary surgeon. It is also important to keep re-treating for fleas, since fleas lay their eggs in carpets etc and then hatch out again, some time later, so check on your flea treatment how often it should be applied and make sure you are adhering to the instructions.

If you have applied prescription flea treatment and your dog still itches, then it is very probable that your dog has a dermatological condition. Dogs can even have eczema, or it may be that it has a slight allergic reaction to something in its environment. If it is a skin condition, then it needs to be treated by a veterinary surgeon who will carry out the necessary tests to define the skin condition which your dog has.

It's probably dry skin.  a lot of dogs have it - it's very itchy and makes the poor dog miserable.  Try  a special shampoo with Oatmeal in it, that sometimes helps.  If that doesn't, call your vet and ask what else to do.    But definitly do something for your poor dog, You know how bad you feel when your itchy.   Good Luck  !

Allergies or sometimes can be something like a thyroid problem or something as well. Food allergies are the most common reasons.
You can check out your food in the links below and if you decide to try a switch it should be very slow (half a bag to a bag of the old). It takes about 3 or 4 weeks to see a difference when switching from low quality to high quality and for all the old c*** to begin to leave the system and stop effecting them so much. You can also make sure your groomer uses and all natural with no perfumes or dyes (not like grocery store type) shampoo to help relieve itching.
http://www.dogfoodanalysis.com/dog_food_reviews/ 
http://www.bornfreeusa.org/facts.php?more=1&p=359 
http://www.terrificpets.com/forum/57502.asp 
q2701731.html

Itching in dogs is common complain of many owners. All skin diseases in dogs can cause itching and dogs relieve themselves by scratching and licking. This scratching and licking can cause hair loss. Some common causes of itching are given below.

1. Mange
2. Fleas
3. Lice
4. Ringworm
5. Hormonal imbalance
6. Infection of uterus
7. Cushing's disease
8. Food allergies
9. Allergies to pollen, dust and mold
10. Autoimmune skin diseases

Final diagnosis can be done by vet. So, take your dog to vet for this purpose.

Are you sure it is not the fleas?

If it is really not the fleas then the problem can be an allergy.

There are many reasons for skin allergy in dogs but one of the main reasons why it happens is because of the food intolarences.

Perhaps this guide can explain to you even further what is happening with your dog's skin:

http://mysweetpuppy.net/sensitive-stomach-dog-food/

There could be a number of things .. Dogs are not much differ in that regard as people. Could be a skin condition, or food or environmental allergy ., too many to mention. The best thing to do is to have the dog examine by a vet before you even attempt at the guessing game of trying to figure out the triggers.

My dog itches all the ti me and there is a bad smell that comes from her skin all the time

It may just have dry skin. I mean, don't you scratch your arm or your head once in a while? Go to your vet and they will help you figure out what the problem is and if it is a problem.

Could be he just has very dry skin. Ask your vet or a groomer (if you KNOW FOR SURE there's nothing medically wrong w/ him) for something you can put on him.