25
Dec
Allergic Reaction On Neck Only. He had 500mg of Cipro but only took 2 because of itching and red patches. Insect bites and stings can also produce hives. A neck rash may be caused by a wide array of conditions and diseases including an allergic reaction autoimmune process and an infection. Its called allergic contact dermatitis and symptoms can include redness swelling itching and hives.
The other kind of reaction actually involves your immune system. Perfume Jewelry Skin care and Other Triggers Red itchy rashes on the neck can sometimes be triggered by expensive perfume or jewelry a fact that I can personally attest to. An allergic reaction on the neck is commonly caused by cosmetics like foundation and lotions. Stress may cause hives on the neck. The reaction might be hives itching or swelling. Hives can be caused by almost anything but allergies are usually to blame.
Hives can be caused by almost anything but allergies are usually to blame.
Other sources of an allergic reaction include insect bites foods and plants. There are many causes for rashes on the neck. The mechanism involves CD4 T- lymphocytes which recognise an antigen on the skin surface releasing cytokines that activate the. Anaphylaxis occurs when allergen-sensitized cells in blood and other tissues release large amounts of histamine and other inflammation-causing chemicals. An allergic reaction can cause an itching neck. Urticaria is usually triggered by allergens such as drugs foods insect bites inhaled substances in response to sunlight cold heat stress exercise or a viral infection.