Apply a cool, damp cloth to the affected area. This can help control inflammation and itching. Anti-itch creams that contain aloe or calendula, natural ingredients that are anti-inflammatory agents, can ease itchiness and control inflammation.
Over-the-counter oral antihistamines like Benadryl , Zyrtec, or store-brand allergy medication might help with allergic dermatitis. Baths with uncooked oatmeal or medicated solutions are also recommended, especially for children. Water should be lukewarm, not hot or cold. Baking soda can be added to lukewarm water to help with dermatitis. Contact dermatitis is often itchy or uncomfortable, but scratching can sometimes make it worse by aggravating the area.
Using a gentle, hypoallergenic, fragrance-free moisturizer can both soothe and prevent contact dermatitis. Lotions add a protective barrier that decreases irritation and cracking. They also make skin less susceptible to irritants like excessive heat and cold. If your contact dermatitis is severe, your doctor may prescribe corticosteroid skin creams or ointments to reduce inflammation.
Steroid creams are very common for people with skin conditions and are often available in low-dose, over-the-counter strengths. In the most severe cases of skin allergy, prescription-strength corticosteroid creams or ointments can be applied to the skin to reduce inflammation.
For whoidespread or severe allergic reactions, oral or injected corticosteroids may be prescribed. They are generally used for less than two weeks and then tapered off. Your doctor may also prescribe tacrolimus ointment Protopic or pimecrolimus cream Elidel , particularly with eczema, to treat symptoms such as redness, scaling, and itching. These medications can be used along with or instead of corticosteroids. Oral or injectable corticosteroids, for example, can lower your resistance to infection.
Less common side effects include increased blood pressure, higher blood sugar, difficulty with sleep and concentration, and restlessness. If you experience any of these symptoms, contact your doctor. Tacrolimus ointment and pimecrolimus cream are often useful when other medications do not work.
Common side effects include infection of hair follicles folliculitis , irritation, warmth, acne, burning, or redness at the application site. Less common side effects include headache, fever, muscle aches, cough, and flu-like symptoms.
These include:. They can usually start treatment. You may also be told to avoid similar medicines. In some cases, a provider may approve the use of a drug that causes an allergy if you are first treated with medicines that slow or block the immune response. These include corticosteroids such as prednisone and antihistamines. Do not try this without a provider's supervision. Pretreatment with corticosteroids and antihistamines has been shown to prevent allergic reactions in people who need to get x-ray contrast dye.
Allergy, hypersensitivity, and anaphylaxis. Philadelphia, PA: Elsevier; chap Grammer LC. Drug allergy. Goldman-Cecil Medicine. Solensky R, Phillips EJ. Middleton's Allergy: Principles and Practice.
Updated by: Stuart I. Editorial team. Drug allergies. Drug allergies are a group of symptoms caused by an allergic reaction to a drug medicine. Common allergy-causing drugs include: Drugs used to treat seizures Insulin especially animal sources of insulin Substances containing iodine, such as x-ray contrast dyes these can cause allergy-like reactions Penicillin and related antibiotics Sulfa drugs Most side effects of drugs are not due to an allergic reaction caused by the formation of IgE antibodies.
Common symptoms of a drug allergy include: Hives Itching of the skin or eyes common Skin rash common Swelling of the lips, tongue, or face Wheezing Symptoms of anaphylaxis include: Abdominal pain or cramping Confusion Diarrhea Difficulty breathing with wheezing or hoarse voice Dizziness Fainting, lightheadedness Hives over different parts of the body Nausea, vomiting Rapid pulse Sensation of feeling the heart beat palpitations. Exams and Tests. Do not increase your dose or take this medication more often than directed.
To prevent motion sickness, take your dose 30 minutes before starting activity such as travel. To help you sleep, take your dose about 30 minutes before bedtime. If you continue to have difficulty sleeping for longer than 2 weeks, contact your doctor. If any of these effects persist or worsen, tell your doctor or pharmacist promptly. To relieve dry mouth, suck sugarless hard candy or ice chips, chew sugarless gum, drink water, or use a saliva substitute.
If your doctor has directed you to use this medication, remember that he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including:.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist. Call your doctor for medical advice about side effects.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at Before taking diphenhydramine, tell your doctor or pharmacist if you are allergic to it; or to dimenhydrinate; or if you have any other allergies.
This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details. Before using this medication, tell your doctor or pharmacist your medical history, especially of:. This drug may make you dizzy or drowsy or blur your vision. Alcohol or marijuana cannabis can make you more dizzy or drowsy. Do not drive, use machinery, or do anything that needs alertness or clear vision until you can do it safely.
Avoid alcoholic beverages. Talk to your doctor if you are using marijuana cannabis. Before having surgery, tell your doctor or dentist about all the products you use including prescription drugs, nonprescription drugs, and herbal products.
Liquid products may also contain alcohol. Ask your doctor or pharmacist about using this product safely. Children may be more sensitive to the side effects of this drug. This drug can often cause excitement in young children instead of drowsiness. Older adults may be more sensitive to the side effects of this drug, especially drowsiness, dizziness, confusion, constipation, or trouble urinating. Drowsiness, dizziness, and confusion can increase the risk of falling.
During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor. This drug passes into breast milk and may have undesirable effects on a nursing infant.
Consult your doctor before breast-feeding. Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Do not start, stop, or change the dosage of any medicines without your doctor's approval.
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