Its natural to experience discoloration in skin especially after a blister or wound has occurred. color changes during the healing process. It could be due to hyperpigmentation which is the increased production of melanin in that area. This can result in a bruise-like appearance.

A canker sore­ might trouble your mouth. They are small, round, and painful sore­s. Stress, spicy foods, or biting your cheek can cause­ them. Try over-the-counte­r rinses or gels to ease­ pain and speed healing. Soft foods are­ better; avoid spicy or acidic ones. Give­ it time - around one or two wee­ks - and it should disappear on its own.

Your skin might be affected by acanthosis nigricans which is identified by dark patches, even on the throat and joints. Being overweight and having high blood pressure are risk factors for this. The treatment is to lose weight and control the BP, as a result, the patches can be healed. Follow a healthy diet, exercise regularly, and be consistent with your prescribed medications to control your blood pressure.

If a dog of yours scratches or nips at you and you don't see any signs of bleeding, cuts, or wounds, the risk of rabies is among the lowest. Rabies is mostly an infection through saliva, hence, when there is no open wound, the chances are minimal. Watch out for any strange signs such as a fever, headache, or tingling in the area near the scratch. In the event, you spot something peculiar, it's best to get checked out by a doctor anyway. But for now, you should be just fine. Rinse the wound under running water and lather it with soap to disinfect it.

If you happen to have a high fever with lip blisters and during pregnancy you can't use medicine, rest easy. These come from a virus mostly. Try petroleum jelly ointments or aloe vera to help in wound healing and to keep the area moist. Also, press a cold pack a couple of times a day. Don't forget to drink lots of water and have enough sleep for the body to strengthen and overpower the virus.