sorry to hear this. it's tough to tell what's going on here without more information. for example did you suffer a trauma (slam your finger in the car door? ) or has this condition been coming on gradually? regardless if you're running a fever; start to experience nausea or vomiting; have difficulty opening your mouth chewing or swallowing; or experience difficulty breathing you should seek medical attention. these could all be signs of a serious infection that requires rapid treatment. otherwise i'd suggest you make an appointment with your primary care provider to have this checked out. whatever is occurring it's not normal and needs to be addressed. hope this helps!
finger is turning purple/red and tip and nail is turning green