Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain it seems that persistent itching all over the body except legs and formation of red spot like hives seems to be most probably due to causes like
allergic reaction to any food or medication,
contact dermatitis caused due to contact with any allergen like poison ivy, leather, latex, skin cosmetic, hair
follicle infection or Folliculitis, mite infestation causing Scabies etc..
I would suggest you to consult an Allergist and get evaluated and a thorough clinical evaluation and investigations like blood tests can help in diagnosis aand treatment can be done accordingly..
In case of allergic reaction anti allergics like Levocetrizine or Allegra can be advised..
Topical steroid ointment, cool compresses and calamine lotion can relieve..
In case of Folliculitis
topical antibiotic and steroid ointments and
oral antibiotics can be advised..
In case of scabies oral intake of Ivermectin and topical Prethermin lotion can help..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.