After hitting the red need to look at its redness and swelling, pain to decide whether to take medicine, if mild redness and swelling, no significant local pain, this is not the need to take medicine, can be in the first two days after the injury, local cold compresses, can reduce local swelling, but also to reduce pain. In the two days after the injury to hot compresses, can promote the local tissue edema, hematoma absorption, if necessary, you can also take oral mild analgesic drugs, such as ibuprofen extended-release capsules or pain relief tablets. If the redness and swelling is too large, you need to go to the hospital in time to check, if necessary, you also need to puncture to draw fluid, or cut for debridement, and may also need to take oral antibiotics for treatment, during the treatment period can not eat too spicy food, such as chili, spicy strips, can not drink alcoholic beverages, etc.