Summarize:

Fever, vomiting, and dizziness are all symptoms of blood poisoning and toxic shock syndrome, both of which can be deadly. Call for emergency help immediately if you notice these symptoms. Tetanus (often called "lockjaw") is a very serious infection that causes progressive muscle spasms. It can be fatal if untreated. While tetanus usually enters the body through deeper puncture wounds, any break in the skin can put you at risk. Check with your doctor to see if your tetanus vaccination is up to date, and whether you need a booster shot. If you had a primary tetanus immunization in the past and the wound is clean, the doctor may still recommend a booster if your last booster shot was more than 10 years ago. If the wound is dirty or tetanus-prone, you should get a booster if haven't had one in the last 5 years. If you never had a primary tetanus immunization, your doctor will want to give you the first vaccine dose. You'll need to return in 4 weeks and again in 6 months to finish the series. If you can't remember when you had your last booster shot, it's best to be cautious and get one. If the infected wound limits your movement, your doctor may recommend physical therapy. The physical therapy will teach you to move and exercise in ways that reduce pain and scarring. This can help increase your range of motion after the infection heals. Blisters and scabs may develop on healing burns and infections. Avoid breaking, picking at, or bursting these blisters. Apply an antibacterial ointment to them, and apply a dry dressing over them. Many people apply aloe and calendula gels to burns to reduce scarring, but these should not be used if an infection develops. They may irritate or worsen the infection. Once the infection is gone, ask your doctor if it is safe to start using these on your wound.
Get immediate medical help if your condition worsens. Get a tetanus booster. Undergo physical therapy. Avoid breaking blisters and scabs. Ask your doctor before using moisturizers on the wound.