question: hi, am Swapna. for the past five months I am having skin allergy on my body, mainly on legs ,hands and hip. i ve taken treatment but nothing worked out..am 27 years old..this started the day after i travelled in train..doctors say may be due to train bugs.it  appears sa small  red bumps, sometimes joins together and starts itching badly at nights.gets severe when it sweats.please suggest a remedy.Regards, Swapna.