Drink more coffee and beware of allergic dermatitis

Although human beings have studied allergic dermatitis for many years, there are still many problems that have not been fully clarified. According to one study, about 44% of adults with allergic dermatitis often have recurrent attacks from time to time. People have known for a long time that food is related to allergic dermatitis, and many foods are the cause of occurrence and recurrence of allergic dermatitis. However, recent studies have found that no matter what causes allergic dermatitis, regular intake of chocolate or coffee can aggravate or relapse.

Patient Li, male, 30 years old, has a history of allergy and suffered from bronchial asthma when he was a toddler. Recently, it was found that the thigh itching, erythema, and spread to the extremities. After examination by several hospitals, it was considered to be translocation dermatitis with genetic tendency, which was improved after the use of antihistamine and topical steroid ointment, but worsened repeatedly from time to time. Later, the rash spread to the whole body and had to be hospitalized. It was suspected to be allergic to metal after consultation, and it was found that it was allergic to tin through the test of several metal allergens. The patient was later asked to have a habit of eating canned food frequently. Metal-packed cans contain a small amount of tin, which is not harmful to the general population, but it may cause allergic reactions to people with allergies. After stopping the intake of cans, the condition improved significantly. A few days later, the rash broke out again. I didn't eat canned food before, but I had the experience of drinking coffee. Doctors assert that the attack is related to coffee, because it has long been reported that although coffee can not directly cause a rash, patients with allergic dermatitis can induce a relapse or aggravate the condition. After the doctor's advice, the patient stopped drinking coffee and the rash did not occur again.

The causes of allergic dermatitis are mostly related to eggs, milk, legumes, meat and wheat. In recent years, it has been reported that chocolate and coffee can induce recurrence or aggravate the condition of patients with allergic dermatitis. Therefore, patients with allergic dermatitis must limit drinking coffee and eating foods such as chocolate in addition to carefully looking for the allergens that cause the disease. The characteristics of allergic dermatitis induced and aggravated by coffee and chocolate are as follows: the rash can be reappeared or aggravated about 10 hours after drinking coffee or chocolate, and the rash can be significantly alleviated after stopping use for several days to 2 weeks. Severe patients can last for 1 month. The rash is mainly distributed in the extremities and can also spread to the torso. The rash occurs in less than 1 in the face.