Hi there ~
I understand your concerns. If your sister has been weaning off of meth
, having side effects of meth withdrawal may be common and the symptoms you describe may be treated symptomatically. I believe that the symptoms may be treated with the use of over the counter medications. However you also need to consult a dermatologist
for an expert opinion and see if there is a dermatological condition that needs to be treated. With regards to the bad body odor
using deodorants and keeping yourself clean and dry will help avoid the smell. I wish your sister the best in recovery.
I hope this helps. Take care and have a lovely day!