A nicotine patch is a type of medication used to help the patient quit smoking. Nicotine is a stimulant in itself for mood lifting. This ingredient is present in tobacco which is responsible for cigarette craving. The patch also has a small amount of nicotine in it, so as to lessen certain withdrawal symptoms. If you are allergic to adhesive of any kind, one should not use nicotine patch, since an adhesive has to be used while applying the patch to your skin. Nicotine Patch can have many side effects which are normal. It is very important to notice the effects of this medication. First and foremost one should not take this drug on his own. It is extremely important to consult a doctor before using nicotine patch. Few side effects seen are dizziness, high blood pressure, nausea and burning. This medicine should not be taken if you are sensitive to nicotine. If you have had a bad experience with any one particular brand of nicotine patch, you can have similar experience with another brand too. Hence one must understand the condition which identifies an allergy clearly. Itching or redness in the area or under the area of the patch is a clear sign of an allergy and you should stop using the nicotine patch immediately. In addition to these conditions if the allergy is severe wheezing and/or other breathing problem is seen prominently.