I noticed the hypersalivation this morning when I woke up. He had some brown substance around his mouth, which made me think he had just eaten. I didn't think too much of it until I got home about 10 later, and he was salivating on the bed sheets. He is not on any heartworm meds. He is an indoor cat and occassionally goes outside with supervision, but has not been outside in weeks. He is neutered. Ocular discharge is red/brown in color.
Can I wait until tomorrow to take him in, or do I need to take him in tonight?