As the temperature rises, people in the enjoyment of the pleasant time of spring flowers, hospitals asthma, allergic rhinitis, hives, eczema allergy patients but the surge. In this regard, experts remind that allergy symptoms should not be taken lightly, to go to the hospital in time for desensitization treatment, the use of anti-allergy drugs must be carried out under the guidance of a doctor, do not indiscriminately take anti-allergy drugs. Different kinds of anti-allergic drugs have their own mechanism of action and anti-allergic properties, various drugs in the treatment of allergic diseases focus on different. For example, cold urticaria with cyproheptadine effect is good; heat urticaria with Antarelle efficacy; stubborn urticaria can be combined with the application of H1 and H2 receptor antagonists; for acute urticaria should be selected for fast onset of action time of the antiallergic drugs; for chronic allergic diseases, due to the need for treatment for a relatively long period of time, you should use some of the non-drowsy effect, other side effects of the drug is relatively small, such as loratadine, Imipramine or Desloratadine. For chronic, persistent or severe acute allergic diseases, the simultaneous use of two or more kinds of anti-allergic drugs can increase the therapeutic effect, i.e., the combination of drugs. When using drugs, it should be noted that the selected drugs should each belong to a different category: it is advisable to use drugs without sedative effect during the day, and apply drugs with sedative and sleeping effect after dinner or before bedtime. Regular change of varieties It is best not to take an anti-allergy drug continuously for more than a month. Taking a drug for a long period of time can cause a number of problems. First of all, anti-allergy drugs are easy to cause drug resistance phenomenon, taking time more than a month, the efficacy of the drug decreases, can not play the role of anti-allergy. Also, anti-allergy drugs have toxic effects, if taken for a long time, these toxic effects occur “accumulation”, more harmful to the human body. Therefore, the use of anti-allergy drugs, do not use a long-term, more than a month you need to switch to other types of anti-allergy drugs, or the use of necessary medication, instead of the regular regular medication. The need for long-term combination of drugs, in the stabilization of the condition, symptom control should not immediately stop using all drugs, but should first be withdrawn from a drug, gradually discontinue the use of drugs, which can reduce the recurrence of the disease. Beware of allergies Almost all drugs may trigger an allergic reaction, anti-allergy drugs are no exception, which to paracetamol, benadryl is the most common. For example, paracetamol, some patients take the drug after the original allergic symptoms not only did not relieve, but also appeared itchy skin, rash, diarrhea and abdominal pain and other reactions, a few patients will even occur blood abnormalities, manifested as a decrease in the number of white blood cells, thrombocytopenia, and so on. If the patient is taking anti-allergy drugs after the original disease does not heal but the symptoms worsen, should be considered drug allergy, and do not mistakenly think that it is due to insufficient amount of drugs, if you continue to increase the dose, it may be very dangerous. Once diagnosed as an allergic reaction caused by anti-allergy drugs, the drug should be stopped immediately and other kinds of anti-allergy drugs should be used for treatment. Be alert to adverse reactions H1 receptor antagonist drugs are less toxic, the safety range is larger, but because of the wide range of applications, acute poisoning of drugs can also occur, especially in children after accidental poisoning is more common. The most common symptoms of overdose are drowsiness, dizziness, ataxia, facial flushing, pupil dilation, high body temperature and other anticholinergic effects can occur within 2 hours. Central excitatory effects are mainly seen in children, manifested by hallucinations, toxic psychosis, etc., which may eventually lead to convulsions. Acute intoxication in adults is usually followed by a latent period of respiratory depression, cardiovascular depression, and even death. Cardiac rhythm disorders are rare. Avoid spicy or fishy food, alcohol, sedative-hypnotic and antidepressant drugs. Avoid scratching the skin or washing with hot water, and suspend the use of soap.