it's can be tough diagnosing an itchy body. hives are red itchy welts on the skin and may be caused by various allergic agents and even nervous conditions. treatment of hives is directed at removing the source of the offending source. i had a generalized body itch took the same course of action as you and eventually broke down and was seen in a walk-in medical clinic for professional help. my symptoms were mostly limited to feeling itchy from head to toe with only a faint trace of a skin rash. i though that i had considered all possible causes including bug bites and new products entering my body such as foods beverages soaps and medications. i also noted that my wife who shared our common bed was free of the same symptoms. obviously i was not contagious. in my situation the hives condition was caused by an oral ant-biotic that i had already taken for 5 days. since i had previously taken this same anti- biotic in the past without negative consequences and didn't immediately see a reaction to the current treatment regime i mistakenly excluded the anti-biotic as my allergic source. in my case i was given an injectable dose of corticosteroid prescribed prednisone and directed to terminate the offending ant-biotic. in your case after 3-4 days without resolving the issue through hydro cortisone and antihistamines it's probably time to see a doctor.
experiencing what i believe to be hives all over my stomach chest and sides as well as lower neck causing itchyness. started experiencing this about 4 days ago after returning from a road trip to nyc. while there i had some calamari at a restaurant other than that life was normal as usual. i been taking antihistamines and using hydro cortisone cream to stop itching. both treatments seem to be working with no prevail