After a wound or wound infection, the treatment methods and drugs used are completely different. I will introduce to you how to determine whether a wound is infected, mainly based on 7 characteristics, which are: redness, swelling, heat, pain, pus, spot, and taste. Red: that is, there is a ring of redness around the wound. It fades after being pressed with a finger, but will soon appear again. Swelling: accompanied by a ring of redness, there will be a distinct bump around it with a soft texture. Heat: when touching the area around the wound with the hand, it can be noticeably hotter than normal skin Pain: the patient will feel significant pain, especially when walking on the wounded area of the lower extremities and after being touched The following three items are seen in severe infections: Pus, which is pus flowing out, sometimes golden, sometimes green, sometimes gray, depending on the infecting bacteria. Special attention is needed: some drugs have characteristics much like pus, such as silver sulfadiazine cream, and need to be distinguished by a medical professional Spot, a fungal infection visible as a necrotic spot, is a mycotic spot Finally, if the wound has a fishy or sweet odor, it also signals the arrival of an infection.