Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain it seems that itching and welts on hand and feet can be due to causes like
allergic reaction to any food or medicine while can also be
Contact Dermatitis that occurs due to allergic reaction to skin cosmetics or any detergents or other things like latex, leather, poison ivy etc..
It can also be due to
mite infestation known as Scabies.
Another cause can be hair
follicle infection also known as Folliculitis that is bacterial infection of hair follicles..
I would suggest you to
consult a Dermatologist and get evaluated and a thorough clinical evaluation and investigations like Blood tests can help in diagnosis and treatment can be done accordingly..
You can be advised to take anti-allergics like Allergra or Benadryl, application of Steroid ointment over the rashes, do cool compresses..
In case of Scabies topical Premethrin lotion and Oral Ivermectin can be advised..
Folliculitis can be treated with Oral and topical antibiotics..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.