Get Your Dog Care Questions Answered by Experts
The differentials for a spot swelling on the head that came up rather suddenly include an abscess (bite or puncture wound from playing with another dog), a serum (pocket of fluid under the skin from trauma), soft tissue trauma and edema (swelling) or something more serious. If she is not painful and is otherwise acting normally- eating, drinking and active/playful like a normal puppy then you can take her in tomorrow to be examined so that she can be treated appropriately. If it is an abscess or a serum it should be drained and a drain placed to allow the fluid to escape and prevent pocketing of fluid again. She should also be put on antibiotics and pain medications during the healing period. If she is painful, lethargic or not eating you should take her in to an emergency clinic tonight to be evaluated. If you have a rectal thermometer and she tolerates her temperature being taken you can take her temperature as well. A normal dog temperature is 100.5-102.5. 103 and above is a true fever with 102.5-103 being a low grade fever. a fever suggested infection or inflammation and would warrant evaluation and treatment tonight.
Does this address your concerns tonight?