Regular Vomiting After Chewing Remote

Hi, about 3 weeks ago my dog chewed the tv remote. Although it didn't appear he ingested a lot of the pieces, a couple days later he vomited what appeared to have been all that he had ingested. However, since then he's been vomiting at least twice a week. It's usually in the middle of the night and nothing but this yellow foam comes out. Other than that he's eating, drinking, and passing stool as normal. His energy level is also normal. I'm asking for advice here first because we're a military family stationed in Japan, far away from any American base so before I adventure myself to a Japanese vet without knowing the language I was wondering what the general thoughts are on this.

Wow!  That sounds to be an exciting life you all have, although I hear that the language and cultural differences may complicate veterinary visits and I'm sorry to hear about the current situation, which sounds stressful for everybody, not least your dog.  The things I would be concerned about are:  1) a foreign body still being wedged within the stomach or intestine, from this or an as-yet undetected incident  2) other reasons for vomiting, such as pancreatitis, liver or kidney disease, lumps and bumps, diabetes (so called 'medical' causes), pyometra if unspeyed.  Furthermore, I don't know what specific local infectious diseases or parasites are of concern in your area of Japan, but your local vet will, of course.  3) potential dehydration, a consequence of repeated vomiting from any cause, which can make them very ill.   It is common that vomiting dogs need fluids i.e. a drip to 'look after' their circulation, even while the cause of vomiting is still being found.  So............ it sounds from here as if you need a vet to assess your dogs' hydration levels, i.e. make a decision as to whether a drip is required.  They may also assess for underlying medical diseases or a foreign body and decide whether radiography, a scope or an exploratory laparotomy is required.  As you mention a remote, if batteries could be involved, these are potentially extremely toxic so this may be an emergency concern.  Whether the cause is something stuck, or something medical, repeated vomiting can quickly turn into an emergency.  I have limited experience of Japanese small-animal veterinary services - and understand the culture to be very different to Anglo-American culture eg. as relates to the appropriateness of phrasing questions etc.  You'll know better than me whether it's appropriate to take a local interpreter with you.  Wishing you all the best - please will you let us know how you get on?