My son is 3 months old and has been sick for a little over a week now. his symptoms include sneezing, sniffling, runny nose, and bloody mucous. he also doesn't sleep as much anymore and is constantly biting/sucking on his fingers.

Bloody mucous: Please bring him to your pediatrician ASAP. Bloody mucous is unusual in a 3 month old, although a humidifier may help if it is dry mucous membranes. If running a fever, be seen tonight at urgent care for this little one who is more susceptible to infections right now. An antibiotic may be needed and a doctor needs to look at the bloody mucous. A bean in the nostril would take another child/person.