A. What you are describing it sods like a salivary gland cysts.
It occurs when saliva leaks from the salivary ducts into the tissues near or within the mouth. This may be caused simply by trauma to the ducts or in other cases, an abscess or tumor in the area may put enough outside pressure on the duct to pinch it off.
Finally, there are instances when the glands, because of an internal inflammatory process, release a fluid that is just too thick to make its way through the tiny ducts. This again leads to an obstruction.
Whether the duct was originally ruptured or not, the pressure of continued saliva production by the glands will finally cause the walls of these tiny tubes to break and allow saliva to leak into the surrounding tissue creating the swelling.
The fact that the color of it red means that there may be blood accumulating inside. Coagulation problems may cause this sign as well.
I would recommend to take her to your veterinarian as soon as possible for a consultation. The condition may be or become painful.
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