One thing I am wondering is what causes the heartburn? Are you eating any beef or pork? Both of these meats can cause heartburn.
I used to get heartburn earlier in my treatment, I also experienced heart palpitations and lots of heart woes; its all because of die-off. Diet can cause it to, so if you get it after eating something specifically, that is the cause right there.
One thing that might improve your skin is sweating out the toxins via a steam room, sauna, jacuzzi, hot bath, etc…this can completely eliminate or reduce die-off symptoms and can help your skin as well. Vitamin C (with bioflavanoids) can help with your skin as well.
Another reason you might be experiencing skin woes is that your liver or other organ is damaged and cannot function properly (or as good as possible). A naturopath could determine what is causing it and hopefully prescribe you a supplement that will heal your skin and organ that is damaged.
Acupuncture is also very effective for skin conditions, depression, energy problems, etc. Its one of the foundations of my personal protocol and feel that is has a lot of really good healing properties.
So are you not taking any antifungals now (or in the past)? Have you noticed the rash/bumps get worse after antifungals?
What is your diet like? What supplements are you taking? The protocol mentions when to introduce probiotics and antifungals, have you seen it yet?