Thank you for your patience. Hopefully Sadie's symptoms have settled a bit now. As you can imagine, there is a long list of possible causes for your girl's drooling tonight including anything from nausea (to due early gastroenteritis for example), through to a toxicity or poisoning, an allergic reaction (such as a bee or bug bite/sting) or even an oral issue (such as a broken tooth or cut lip/tongue. You are going to have to continue to keep a close eye on your girl and if the drooling is still continuing and your girl seems lethargic, then you are best to play it safe and have her checked by your local ER vet tonight if you can.
If you think that she could be nauseous, then you could try her with a little pepcid. The typical dose for this type of situation is 0.25mg per pound of body weight up to twice daily. You can read more about the use of Pepcid in dogs online here: http://www.petplace.com/article/drug-library/library/over-the-counter/famotidine-pepcid
For now, please keep an eye on her mucus membranes, capillary refill time and respiratory rate tonight as follows (do be careful that your girl doesn't try to bite you):
Mucus membranes - flip her lip and look at the color of her gums. They should maintain a nice salmon pink color. Get her to the emergency Vet if they appear white or very pale pink, or if they are a dark deep red color.
Capillary Refill time - this measures blood perfusion and test this by putting your thumb on her gum to apply pressure. After you release your thumb you will see the gum blanch. Capillary refill time is the amount of time it takes (in seconds) for the gum to return to a healthy pink color from the blanched white color. If 2 seconds or less don't worry - if it is taking significantly more time, again - off to the emergency Vet.
Respiratory Rate - if she seems to be panting or breathing rapidly throughout the night, this is a sign of shock and or pain and a signal for a trip to the emergency Vet.
As above, if her drooling is ongoing or you have seen new symptoms develop, then given her age, you are best to get her seen by your local ER vet tonight. Hopefully the parameters mentioned above are all ok. Make sure Sadie has plenty of fresh water available and encourage her to drink as well. I hope all of the above makes sense? If you have more questions or if I can help in any other way, please do not hesitate to ask! If you would like to accept my answer, please press RATE OUR CONVERSATION (I am not compensated in any other way). Bonuses are always welcome. Thanks! I hope to work with you again soon!
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