Do skin test a little slight red may be clothing cuts lead to, may also be caused by drug stimulation, may also be caused by drug allergies. It is recommended to seek professional help in a timely manner, to take appropriate treatment measures after the judgment is clear. 1, clothing cuts: the skin test a little bit of red performance, may be due to the skin test clothing cuts. At this time, you need to inform the doctor or nursing staff in a timely manner, re-examination, in order to prevent inaccurate results of the skin test; 2, drug stimulation: part of the skin test drug irritation is strong, or skin test is too sensitive skin, may also lead to a little bit of skin test is slightly red, is a normal phenomenon, no need to deal with; 3, allergic reaction: such as a little bit of skin test is slightly red, and at the same time localized swelling, itching and other conditions, it suggests that there may be drug allergies. It suggests that there may be drug allergy. According to the type of drug to determine the specific treatment measures, such as tetanus skin test, you can use desensitization injection method of drug delivery. Cephalosporin, penicillin skin test, you need to avoid continuing to use, etc., skin test allergy, suggesting that you can not use such drugs. Usually need to communicate with the doctor to replace other drugs, and then should also avoid the use of such drugs, so as to avoid the occurrence of allergic conditions, panic, chest tightness, dyspnea, anaphylaxis and other manifestations.