2) Before you bring your Pomeranian back into the house, wash off his paws. During warm weather this can be done with a garden hose. On cooler days, you may wish to carry him to the sink or wipe down the paws (and lower legs) with canine wipes.
3) Do not keep windows open; it's better to run ceiling fans to have air flow.
4) Do run your AC or central air conditioning unit. You'll want to make sure that the filters are HEPA certified of the highest class possible. This will trap very small microbes that would otherwise remain in the air.
5) Vacuum the house on a regular basis using HEPA filtered vacuum machines. This will pull out and trap both allergen particles on the floor and in the air. Use the attachment to go over curtains and furniture.
For contact allergies:
1) Use a hypoallergenic laundry detergent to wash all bedding, clothing (all human's and your Pom's if he has any), washable pillows, your Pomeranian's bed cushion covers, blankets and pillowcases, etc.
2) Take note of any certain stuffed toys that you may suspect are causing the allergy; we know of a Pom that had troubling allergy symptoms for months and as soon as a certain stuffed toy was removed, his issues cleared right up.
3) Never use plastic bowls for food or water. Stainless steel bowls are best and ceramic is another alternative. Not only can a Pomeranian be allergic to the plastic, heavy colored bowls can also cause staining to the facial fur.
4) Stop using any carpet cleaner powder - your HEPA vacuum (as discussed above) will be all that is needed.
5) Reassess the all of your Pomeranian's grooming products. Often inexpensive shampoos, conditioners and leave-in products can be the cause of allergies and skin reactions. Quality shampoo and other bath products will not only relieve any problems, they will improve your Pom's skin and coat health.
6) A Pom have have a sensitivity to lawn care chemicals and if so, symptoms such as itchy skin may occur only on the paws, legs and tummy (if the grass reaches the dog's underbelly). If you suspect this, keep him off any lawns that may be treated with weed killers or other treatments.