Generally, an allergic reaction occurs when the body reacts to a substance that is usually harmless. There are many types of allergy including cigarette smoke allergy which is caused by the numerous toxic chemicals and irritants found in cigarette smoke. 
You are a smoke allergic, aren’t you?
Smoke Allergies happens with both smokers, of course, and those around them.
According to study, here listed groups are prone to be “Smoke Allergies” including: children and infants, elderly persons, People exposed to heavy smoke for long periods of time, People with allergy history (anyone with allergies, asthma, eczema, etc).
Some typical symptoms
If you exposure to tobacco smoke, the symptoms would be:
Sneezing, coughing, watery, burning eyes, runny nose, post nasal drips, congestion and shortness of breath.
There are two main types of smoke allergies:
Smoke Aggravating Underlying Allergies: your body is weakened by smoke and begins reacting to all the tiny bits of nearby pollen, dust and dander that usually would not have been a problem.
Vasomotor Rhinitis: this is a condition that has all the same symptoms as allergic rhinitis (which is also called nasal allergies or hayfever), but cannot be treated by antihistamine allergy medicine.
How to reduce the risk of suffering from smoke allergy?
Because cigarette smoke allergy can harm not only smokers but also people surrounding, it is important to stop smoking. Family members of a smoker may suffer from respiratory infections, especially children when they are born. Being exposed to secondhand smoke can create allergic symptoms such as sinusitis and bronchitis.
If you are smoker, try to quit smoking as soon as possible. Against, stay away from smoking environment around you.
Commonly, those who are addicted to smoke find difficult to get rid of it. There will need time and patient by themselves. Namely:
Start with setting a quit date and making a plan. During this plan, you should go along with some exercises such as walking, swimming;
Drink more waters and juices;
Attend a stop-smoking class or follow your self-help plan;
and always keep a positive attitude.