sorry man, cant help you there. However she might be able to last for a month if she takes on a new diet.
A strict regiment of fruits and vegetables will be able to alleviate her pains.
1. Eat no more than three meals a day (with at least 5hours in between each meals) (no snacks in between)
2. Eat 5hours before you sleep (9to 10PM is favorable time to sleep)
3. In the morning eat a simple diet of wheat centered food, no sugar coated cereal, drink milk with slim fat, and such. It is also good to eat side dishes with either fruit or vegetables. Try not to combine both fruit and vegetables in one meal
4. During lunch, advise her to eat food centered around energy inducing foods. No energy drinks, no coffee, no soda drinks, and etc. Vegetables will be good around this time. Try not to center your meal around salads. A subway will be nice, try to exclude meat.
5. Dinner should have the least amount of food. Eating only fruit during dinner will help her greatly.
The diet above is a diet that doctors don't regularly prescribe. However this diet is a miracle worker. Make sure you pray to God, having skin disorders is very stressing. Trust me, i know
hope your mom gets better...
