When using cortisone creams or lotion always remember a little goes a long way and to massage it in well. Keep the skin lubricated. Use a bath oil or Aveeno powder in the tub. Do not take more than one bath or shower a day. Use lukewarm water, not hot.
Hot water dries out the skin.
When toweling dry don't rub. Then apply a moisturizer to all of the skin such as Vaseline, Lubriderm, or Moisturel. Soap irritates and dries the skin, so keep it away from your lichen simplex chronicus. Hot weather and heavy sweating tend to worsen lichen simplex chronicus. Wear cool, loose clothing, and try to stay in air conditioned buildings.