Shingles usually begins with a tingling, burning, or painful sensation on one side of the body, often on the torso, chest, abdomen, or face. This pain can be intense and is sometimes mistaken for a muscle strain, heart problem, or other condition. Within a few days, a red, blotchy rash appears in the same area, which quickly develops into fluid-filled blisters similar in appearance to chickenpox. The blisters typically crust over within seven to ten days and fully heal within two to four weeks. Other symptoms may include a high temperature, headache, fatigue, and a general feeling of being unwell. The rash almost always appears in a band or strip on one side of the body, following the path of a single nerve. In some cases, shingles can affect the eye, known as ophthalmic shingles, which requires urgent medical attention to prevent damage to your vision. If you develop a rash near your eye, or if you are unsure whether your symptoms could be shingles, seek advice from your pharmacist or GP as soon as possible. Early treatment within 72 hours of the rash appearing is most effective.