Contact dermatitis: This is an allergy that occurs when certain substances come into direct contact with the skin.
Examples: soap, detergent, perfume, cosmetics, certain metals (nickel used in jewelry), paint, or chemicals.
Food allergies: Itching or swelling may occur when eating certain foods.
https://youtu.be/Cojri4LeNpo
Examples: seafood, eggs, milk, peanuts, soy, and certain fruits.
Medications: Allergic reactions to the skin can occur when taking certain medications, such as antibiotics or painkillers.
Environmental factors: Contact with pollen, dust mites, animal dander, and mold.
Insect bites: Allergic reactions to the skin can occur when bitten by insects such as bees and ants.
Clothing and fabrics: Synthetic fabrics and washing powders can also irritate the skin.
Stress: Stress can increase skin allergy symptoms in some people.
https://youtu.be/Cojri4LeNpo