A small thorn in the hand is invisible and can be picked out on its own if it is shallow. If the location is deep, you will need to go to the hospital for debridement and possibly medication. When a small thorn in the hand can not be seen, if there is no obvious local discomfort, and the location of shallow, usually can be removed by themselves. Patients can use iodine povidone to disinfect the local area. If a white spot is found, it is mostly suspected to be the place where the small prick exists, and then use sterilized tweezers to pick it out, or use adhesive tape for repeated taping. However, if the hand appears obvious pain, redness and swelling and other symptoms, you need to go to the hospital in time, under the operation of a professional doctor for debridement in addition to its removal, some patients may also need to comply with the doctor’s instructions for external use of erythromycin ointment, mupirocin ointment and other antibiotic drugs to control infection. To summarize, when a small prick on the hand can not be seen, if necessary, it is recommended to consult a doctor in a timely manner, as prescribed by the doctor to deal with.