RxSideEffect.org: The effects of drugs vary depending upon the drug taken

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Like most prescription medicines, anti-allergic drugs can cause side effects. These unwanted effects are often mild, but sometimes they are more serious and can have a major impact on health or quality of life. Most of modern anti-allergic medications are very well tolerated and only rarely cause serious side effects. The effects of drugs can vary depending upon the kind of drug taken, how much is taken, how often it is used, how quickly it gets to the brain, and what other drugs, food, or substances are taken at the same time. Effects can also vary based on the differences in body size, shape, and chemistry. Antiallergic drugs differ in how commonly they cause particular side effects. Medications are prescribed for a specific purpose, and anything else the drug does is a side effect. Some side effects are mild, like a slight headache. Others, like liver damage, can be severe and, in rare cases, fatal. Some go on for just a few days or weeks, but others might continue as long as you take a medication, or even after you stop. Some occur within days or weeks of starting a drug. Others may only show up after months or years of therapy.

The treatments prescribed for allergy control the symptoms and reactions; they do not cure the condition. However, using treatments as prescribed can show a huge change in a patient’s health, mood and development once the medication or treatment routine is working to control the symptoms. The symptoms of some allergic conditions can increase the likelihood of localised infections. In particular, irritated skin caused by eczema can be vulnerable to infection, as can the nasal sinuses of people who suffer from hay fever or perennial rhinitis. For this reason it is important that infections are diagnosed and treated as soon as possible.

There are many types of anti-allergy medications. The choice of medication and how it is given depends on the severity of the reaction. For relief of long-term allergies such as hay fever or reactions to dust or animal dander, the following medications may be recommended or prescribed: Long-acting antihistamines, Nasal corticosteroid, antihistamines.