pimples that turn into sores

Hi Shelley,

I've just had a recurrence of something i had a few years ago, and am wondering if you might be able to help.
I get a small itchy pimple on my leg - usually thighs, and thats where this one is - its fills with bright yellow pus and i more often than not squeeze it, it gets infected (very very quickly) and gets really red around it, gets bigger and itchier and if not checked, basically turns into a large ulcer-like hole (a couple of yrs ago, it was a few centimetres deep and wide... eeeuw) Penicillin injections (3) couldnt get rid of that large one, but copius amounts of Colloidal Silver did. So I usually put Colloidal Silver on it until it goes away, which takes up to 2 weeks, and the scar can stay for months. Unfortunately i have lost my Colloidal Silver generator. Also, i still get the pimples to this day.
Unnatural trouser fibres irritate my skin, so i no longer wear them, but this one popped up the other day :-(

I assume its because my system is toxic and wants to get rid of stuff and its the only way.

Might it be some sort of heavy metal lurking in me?

Could mass doses of vitamin C help out do u think?

I read that these sores are sometimes symptoms of diabetes (which my family has a huge history of...) but my diet is seriously low in refined sugars.

Could it possibly be an allergy?

Thanks for any ideas on what it might be!
xoLeah.