A skin rash from tomatoes is commonly the result of allergic contact dermatitis. Allergic contact dermatitis is a skin condition in which the skin becomes inflamed by coming in direct contact with an allergen or irritant, such as tomatoes. Tomatoes and other highly acidic foods can cause contact dermatitis.

If you develop skin rashes after you touch or eat mushrooms, you are most likely allergic to them. The Cleveland Clinic states that if you have a mold allergy, you may experience an allergic reaction when you eat mushrooms.

Skin rashes are common occurrences and do not always indicate a severe problem. Generally, they will emerge from an environmental irritant, which can cause the skin to inflame and exhibit symptoms of itchiness, small bumps and flaking. Other times, it can indicate an underlying skin condition.

Rashes are caused by skin irritants such as chemicals, plants, heat or friction as with shaving. Although causes of irritation differ, physical characteristics of different rashes can be very similar. Identified by inflammation, redness and a splotchy appearance, rashes may be painful or just itchy.

Most people experience a face rash or acne at some point in their lives. Acne occurs when natural oils and skin cells become trapped in pores, usually on the face, allowing bacteria to grow. In contrast to acne, rashes can be caused by viruses, parasites, fungi, heat or allergies, according to the Mayo Clinic.

Skin rashes and zinc are intimately connected. In some cases skin rashes such as pityriasis rosea and contact dermatitis can be healed with products containing zinc; in other cases, zinc may actually cause skin rashes to develop.

To determine the best body lotion with salicylic acid, read its description, ingredients and warnings. Uses for salicylic acid include acne, warts and psoriasis.

Rashes and hives are often external symptoms of your body fighting off an invader, irritant or allergen.

Many people have food sensitivities. You may have an allergic reaction appear as a child, or an allergy may seem to suddenly appear when you are an adult, even though you ate the food many times previously. Strawberries are one type of food that may cause food allergy symptoms.

Despite its name, ringworm is a fungal skin infection, not a parasitic worm. The name actually refers to the appearance of the infection, which often seems to form a red ring on the affected skin.

A stylish hat can put the finishing touch on an outfit. However, some people find that they develop a band of red, blotchy skin on their forehead after wearing hats. Good news: You don't have to stop wearing your favorite fashionable chapeau.

When you notice ring-shaped rashes on the face, one of your first instincts may be to blame a ringworm infection. This fungal infection has a direct and strict course of treatment. But before you self diagnose, try to rule out other possible causes of the problem.