How Can You Treat the Insane Itching While Healing from a Laser Burn?

You might benefit from short-term use of a high-potency topical steroid cream for a few days.  You should see a dermatologist to discuss this further.  Hydrocortisone is fine but it is weak and may not provide sufficient relief.  The key is not to scratch at the area which could cause it to scar.

This is a common side effect and can be very annoying as you know.  Try an over-the counter hydrocortisone cream 2-3 times daily for a few days.  If the OTC hydrocortisone creams do not help, you may need to see your dermatologist for something stronger.  The next time you have your treatment, apply the cortisone immediately following the treatment.  This may help with the inflammation and itching before it gets out of control.

As well as the OTC hydrocortisone, you can try OTC benadryl at night to help you sleep.  It will likely make you drowsy so use caution during the day and start with half the allowable dose.  Ice packs are also helpful.  Please do not scratch!  If these measure dont work, ask your treating physician to call in a stronger topical steroid.  A stronger topical steroid may also reduce the risk of scarring when used in the short term.