1. Diagnose the Cause of the Rash
A swollen red rash can be symptomatic of a wide variety of conditions which may require vastly different treatment approaches. In some cases, such rashes may indicate an acute allergic reaction to an environmental contaminant. For instance, someone with a peanut or nut allergy may swell up in the presence of the allergen. If this person doesn't get proper treatment with targeted antihistamine-like drugs, she can go into shock or even die. However, in other cases, a swollen red rash may be the result of nothing more than an abrasive shaving experience or a series of mosquito bites. If the rash suddenly starts moving across the face, swelling to an uncomfortable size or not responding to simple home treatments, get a professional diagnosis ASAP. In particular, if the rash is comorbid with an inability to breathe or a constriction of the throat, you may want to consider calling 911.
2. To Relieve Discomfort, Try Pain Relievers and Antihistamines
Non-steroidal anti-inflammatory drugs (NSAIDs) like Advil, Aleve and Tylenol can reduce inflammation at the site of the rash and relieve the pain and itchiness associated with it. You can apply hydrocortisone to the area as well, available at any pharmacy over the counter. This will help beat back the itchiness and provide soothing relief. Other creams and topical ointments can also help. A simple moisturizer or cocoa butter treatment can alleviate some symptoms. You may also want to take an antihistamine to reduce swelling and supplement the treatment effects of any NSAIDs you take.
3. Ice and Dress the Rash
You can use an ice pack or cold compress to provide relief to a hot, flushed area. Be sure not to apply ice directly to the face, as that can cause cold burns. Instead, wrap cubes in a cloth or use a pharmacy-approved cold press. In some cases, leaving the rash open to the air may feel soothing; in other cases, dressing the rash with a light bandage or gauze may feel good. Listen to your body when treating symptoms.
4. Get Medical Help if Symptoms Worsen or Other Symptoms Present
A red rash on the face can be a harmless inconvenience or a harbinger of danger to come. Observe how the rash reacts to your first treatments. Never attempt to "sleep off" a growing and swelling rash, especially one that presents with a shortness of breath or a feeling of constriction.
