You are having R A
And you are having rash on hands and feet.
There are itching and burning .
You are taking antibiotics.
It seems that it may be either drug induced rash
or contact allergic dermatitis
You consult dermatologist
for perfect diagnosis and treatment.
Change the antibiotic drug.
Take short course of steroids
Take antihistaminics till itching is relieved.
Apply mild steroid cream on affected areas.
Avoid soap bath, you can take dettol bath.
Avoid stress and worries.
I hope you got my answer.
Dr. Ilyas Patel MD