Hi..
Welcome to HEALTHCARE MAGIC.
I have gone through your query and can understand your concerns..
As per your complain rashes over the chest and hand that comes and goes seems to be due to
allergic reaction and can be due to either any food or medicine or can be
Contact DERMATITIS that can occur due to allergic reaction to some detergent or skin cosmetic while other causes can be allergic reaction to poison ivy, leather, latex etc..
I would suggest you to consult an Allergist and get evaluated and he can advise you allergic testing like
Patch test, RAST test, Food challenge test to rule out the exact cause of allergic reaction and preventing exposure to allergen can help..
In case if still you are exposed to allergen you need to take anti-allergics like
Dazit M that contains Monteulokast and desloratidine.
An
Immunotherapy can also be instilled to reduce the severity of allergic reaction..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.