Yesterday I came home from work with itching hands and around my knees. The more I scratch small bumps arise and look like a chigger bite or small ant bite and the itch terribly. Benadryl spray provides some relief, but if clothing or shoes provide any pressure the itch begins again. I do my own yard and have for years and have never had this problem before. The bumps or rash seem to migrate around, but the largest ones continue to remain and continue to itch. I know have areas of irritation on my stomach, arms, ankles, and lower back. Any ideas?