I've had chilblains for about 3 months now, i've read they were supposed to go away within a week? is there anything i can do to help it?

Yes: Yes, chilblains should have gone away. Since they are not you need to see a dr to check you for connective tissue or vascular disease.

Chilbains: There are 2 types: acute ; chronic. Acute are self limiting in about 3 weeks;chronic can take up to 5 months of the year and can be recurrent. Sounds like you have the chronic type. Make sure you move around when you are outside in the cold, wear gloves, layers of warm clothings, looser shoes so as not to restrict circulation, keep your skin moisturized and drink hot drinks to keep your body warm.