When a rash and headache suddenly appear, the possible cause is an allergic reaction. Allergies can cause rashes and headaches, from mild irritation to pain and horrible attacks. Various types of allergies can cause these types of reactions. Therefore, patients should always consult a doctor to determine the cause of the rash and headache and what needs further treatment. Many rashes and headaches caused by allergies respond well to simple treatments. Visiting your doctor will help you determine how to treat your allergies.
Cause
An allergic reaction occurs when the body's immune system overreacts to the presence of harmless substances such as pollen or animal dander. This substance is called an "allergen." When the body detects that he has an allergen, it releases a chemical called histamine. As the level of histamine in the blood rises, many symptoms appear when the body tries to flush the allergen and prevent it from re-entering. These symptoms can be manifested in different ways.
Rashes
Allergic reactions can produce a variety of different rashes. Urticaria is a raised welt that appears after exposure. They are usually caused by food allergies, which can also cause redness, itching and swelling around the mouth. Other forms of allergies, such as latex allergy, can produce a rash called "dermatitis" that occurs after skin contact with allergens. The intensity of an allergic rash may vary. Severe allergies can cause long-term and severe rashes. Delayed reactions are very common and more serious.
Headache
"Allergic rhinitis" is the name of a group of symptoms that usually occurs in people who are allergic to pollen, cat dander and other nasal irritants. Early symptoms may include runny nose and tears, and inflammation of the eyes. Nasal congestion develops late, leading to congestive headaches. The patient may experience uncomfortable pressure in the upper nasal area. Severe allergic rhinitis can also lead to disorientation and memory impairment. In many cases, allergic rhinitis and dermatitis can occur together, including reactions to certain types of food allergies.
Treatment
Headaches and rashes caused by allergies can be treated in a variety of ways. Antihistamines lower histamine levels in the blood and reduce the cause of the reaction. In addition, nasal congestion and headache can be treated with decongestants and analgesics, while topical creams can reduce swelling and itching of the rash. OverThe sensitization itself cannot be effectively treated, although they sometimes decrease over time; therefore, patients should take care to avoid allergens that cause rashes and headaches. Always treat your allergies with your doctor.
