White patches of skin that are numb
For frostbite (superficial or deep):
Skin that is white or grayish-yellow and feels hard, waxy, or numb, or is blistering or becoming darkened or black
Other symptoms include swelling, itching, burning, and deep pain during the rewarming/healing process.
Get medical attention immediately if you think you may have frostbite.
Many people find inhaling steam, such as from a hot bath or shower, or a cool mist humidifier makes them feel better.
In all cases you should avoid smoking and being where others are smoking.
After a careful exam your doctor will decide on a course of treatment. Most of the time, your doctor will recommend home care and may prescribe a steroid injection or prescription. If the doctor is concerned about a bacterial infection causing the laryngitis, then he or she will prescribe a course of antibiotics.
Sometimes, the doctor may choose to observe you in the office or the emergency department for a short time to be sure you are not getting worse quickly. If you have any signs of respiratory distress or that your airway might swell and close, seen more commonly in children than in adults, then you will be admitted to the hospital.
It may be necessary to place a breathing tube into your throat. The procedure is called intubation. You will then be placed on a machine called a ventilator to breathe for you. In this situation, you will receive intravenous antibiotics and probably steroids.