There are people whose condition appears to get worse before it gets better. Sometimes when detoxing the body, it takes the opportunity to heal a past condition and while doing this, the symptoms of the condition can sometimes surface as they are being released.
Continue to drink lots of water and to eat very cleansing foods (once you begin eating again).
Oatmeal baths and coconut oil on the skin can be very soothing here too.
Do your visualizations and imagine the last remnants of psoriasis being cleansed out of your system and this flare up being part of that process.
Do see a doctor or use your medicine if you need to.
Disclaimer: The Gabriel Method is not intended to treat, cure, or prevent any disease or illness. This information is intended for educational purposes only, not as medical advice. Always check with your doctor before changing your diet, eating, or health program.