bad die off or candida getting stronger

i've been doing the McCombs plan and eating grains and fruit while
taking coconut oil instead of castor bean oil, i know his plan is with the castor bean oil but i think the coconut oils meduim chain fatty acids are pretty similar in effect and plus i can not afford to buy all his supplements right now. So after 1 week i have a worsening of symtoms such as a bad skin rash on my face. does anyone know if this is candida die off or the candida getting stronger from eating the brown rice and fruit?
i feel like going straight back to my low carb diet again because i don't want to feed this candida and make it stronger, but im not sure if it is just my bodies reaction to killing off the candida. should i keep eating the brown rice and fruit while taking the antifungals? i know the carbs feed the candida but the McCombs therory seems logical, i mean it must be better to heal and streathen the immune system with wholesome natural foods and inhibit the candida back to a benign yeast form? Sorry for the long post. thanks