Had allergic reaction to supp 6 weeks ago redness, itchiness, all over body. i have taken cortisone and antihistamines oral and injectable forms. i have since stopped cortisone, only using dazit, phenergan, and fexo antihistamines. redness persists?

Allergic Reactions to supplements will last until that substance is out of your system. This may take several weeks to months depending on what it is and how it was taken. Limit the medications you are taking as they may contribute. Stop taking the Phenergan, and continue to take oral antihistamines such as fexofenadine, loratadine, desloratadine or Cetirizine. Use Diphenhydramine at night.