Will hydrocortisone help the burn after nair cream?

Possibly: If you are experiencing a mild contact allergic reaction to nair, Hydrocortisone may help to reduce the burn (or redness or itching).

Yes, it may: Options – use washcloth soaked in cold water or even ice water as a compress x 15 minutes. No not apply ice directly to skin. Petroleum based lubricants/ jellies/ lotions (Aquaphor ointment, Vaseline) or aloe can help to maintain moisture. Hydrocortisone cream 1 % can be applied for significant inflammation. For blistering – consult with your doctor.