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Term: Delayed Allergy

Noun

A delayed allergy, also known as a Type IV hypersensitivity reaction, is an allergic response that occurs several hours or even days after exposure to an allergen. Unlike immediate allergies, such as hay fever or food allergies, the symptoms of a delayed allergy take time to manifest.

Sample Sentence:

I developed a delayed allergy to nickel, and now whenever I wear jewelry containing nickel, I experience a rash that appears two days later.

Example Products on Amazon:

• Nickel-Free Jewelry
• Hypoallergenic Cosmetics

Adjective

In medical terms, delayed allergy refers to an allergic reaction that occurs after a certain amount of time has passed since the exposure to an allergen.

Sample Sentence:

The patient's delayed allergic reaction to the antibiotic was unexpected, as it usually occurs only in a small percentage of individuals.

Example Products on Amazon:

• Hypoallergenic Bedding
• Dust Mite Allergen Covers

Verb (Past Tense)

Delayed allergy, when used as a verb in the past tense, refers to experiencing an allergic reaction after a delay in time from exposure to an allergen.

Sample Sentence:

She developed a delayed allergy after eating shellfish for the first time. It wasn't until a few hours later that she started experiencing severe symptoms.

Example Products on Amazon:

• Allergy Relief Medication
• Antihistamine Cream