Hi..
Welcome to HEALTHCARE MAGIC..
I am sorry to hear about your problem and will try me level best to solve it to the best of my knowledge and experience...
As per your complain pins and needle itches along with weeping especially after bathing that subsides gradually seems to be most probably due to
Contact Dermatitis that is occurring due to contact of the skin with some irritant while bathing like soap, body shampoo, detergents etc..
I would suggest you to consult an Allergist and get evaluated and a thorough clinical evaluation and investigations like
Patch test, Prick test,
RAST test etc can help in ruling out the exact cause of the symptoms and treat you accordingly..
You can be advised to use hypoallergic soaps and detergents..
You can take anti allergics like
benadryl if you still accidentally gets exposed to the allergen..
You can be Instilled Immunotherpy to reduce the severity of allergic symptoms..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.