The disadvantages of often applying plasters are as follows: the first point is to stimulate the skin. Easy to produce allergies, plaster paste too long, after the drug is absorbed, the skin is always stimulated by the drug, resulting in skin redness, swelling, or rash, serious will appear a large area of allergy, and even throat edema, etc.. Therefore, plastering is not suitable for everyone, especially for women and children with delicate skin, who are more likely to have allergies. The second point is to produce drug resistance. The cream itself is through the local skin penetration to achieve the purpose of the cure, for the local skin produced by the drug is easy to produce resistance, can not really achieve the effect of the treatment of disease, so after a period of time, about three days in a row, will appear to use the phenomenon of bad. The third point, often paste the bad side of the cream is to have a certain masking effect on the disease, many diseases are manifested in the symptoms, if not for the treatment of its original disease, only treating the symptoms but not the root cause, the disease will be covered, including pain will stop, and can not truly reflect the body’s disease condition, for the human body has a certain harm.