Woof, try painting your nails with nice nail polish every day and scrubbing them gently every time you wash your hands. Although I never chewed my nails to the extent that you do I did have a tendency to nibble a little bit but I wanted nice nails and was given that advice years ago. It really works - and I think it's because by doing that you consciously look after your nails. Please try. You're injuring yourself!
Wolf do a bread poultice on it.
Warm milk till hot not scolding, put a bit of the heel of bread on it, let the milk soak in, put it straight on the finger and bind, as it cools and dries it will suck any nasties out.
I was going to try RH's poultice idea but I don't have either bread or milk in the house.
Rosetta - Yes, I am Diabetic and should know better
I went to the local pharmacy and the pharmacist gave me Magnesium Sulphate paste to put on the wound. If it doesn't draw the poison out I have to go to see my GP.
I got the paste free - something to do with NHS Scotland allowing pharmacists to prescribe medication.
Probably costs about 30p. Every house kept a jar of it at one time, usually in a form called blackjack drawing ointment - we used it a lot to pull splinters out.
Whitlow was the word that I was looking for this morning.
It doesn't hurt quite so much as it did this morning. The last time this happened I had to have two courses of antibiotics and a doctor stock a needle in it to release some of the pressure.
I have been a nail biter for so long that I doubt if I could stop now.