Suggest Treatment For Skin Allergy

I HAVE SKIN ALLERGY PROBLEM SINCE 7-8 YEARS IT IS CALLED IN HINDI "PIT PROBLEM" BUTNOW FROM 15 DAYS AT MY STOMACH AND LEGS AND HANDS THERE IS HUGE RASHES AND IN HINDI CALLED" DAANE " I HAVE TAKE ALLEGRA MEDICINE SINCE SO MANY YEARS ND SLO DO TREATMENT IN AYURVEDIC BUT NO CURE TELL ME WHERE I CAN DO MY TREATMENT I AM IN CGHS FACILITY