Ok so I googled “pruritus pigmentosa” because this is the real name of the keto rash.
There were a few case histories described concerning not only dieters, but ketosis has also been used to treat epilepsy, among other things. And the authors noted that there are 2 therapies which work:
- higher carbs
- doxycycline ( tetracyline, minocycline)
Cortisone doesn’t work at all.
They think the antibiotic works because there might be a connection to the gut biome. The antibiotic must clean up the intestines and that leads to a healing of the rash.The rash seems to have to do with an infiltration of neutrophilic cells around the blood vessels and this seems to be connected to an adverse reaction to bacteria in the intestine. Doxycyline attacks the bacteria there and straightens out things. Rash goes away.
They also said that oftentimes the rash goes away by itself after a few weeks.
I think I am going to take the antibiiotics - doxycycline- because nothing else really works anyway. This therapy is supposed to resolve the rash in about a week. The alternative is to play the waiting game if you are unwilling to increase your carbs.
So big hug to all you keto rash sufferers. I am going to try doxycycline !!!