I got a piece of spaghetti in my finger nail. this morning i woke up and the finger looked puffy. what can i do about this? do i need to see a doctor?

Soft spaghetti?: I would use a nail brush to wash out any material under the nail. If there is spaghetti present which has hardened you can soak your finger in water & epsom salts & then use the nail brush to clean it out. If the finger becomes swollen, red, hot, tender or you develop red streaking - then would recommend a medical evaluation.

Puffy finger: Yes you do. It is quite likely that this has become an infection and will need antibiotics.