I appreciate your motivation and determination to stop smoking! Keep it up!
3 weeks is long enough a period- the body by now must have got ridden of any toxin. Your problem has nothing to do with it!
Deodorants often simply substitute a different odour from the existing one!
It is possible, you have a fungus infection - You need to see a skin specialist (Dermatologist
) - they can see scrapings, find the fungus and give appropriate medicine
Be assured - it sounds like a simple and curable inconvenience!