Hi welcome to Health care magic forum.
Thanks for calling H.C.M.Forum.
According to your description it appears to be the bacterial infection, that is why not responding to local steroids
and antihistamine , benadryl
I advise you to consult a dermatologist
for diagnosis and treatment. You may have to use antibiotics for cure of the infection. If not responding to treatment you may need to have culture and sensitivity of the pus of the boils
Wishing for a quick and complete recovery. If you have any doubts you can approach H.C.M.again.