i having red rashes ichy and went to dr clinic, we assumed poison ivy, heat sun rashes one day last week i went fishing. the pa gave me steroids injection, cream. it helped one day/night, red rashes cleared up however it starting flared up again all over area that not affected a day before like legs, arms. what going on? i had been using oral steroids before and it always worked immediately a couple hour and the red rashes went away. what your advice