Meningitis is a serious and potentially life-threatening infection that affects the membranes surrounding the brain and spinal cord. It is caused by bacteria, viruses, fungi or other microorganisms. The symptoms of meningitis in adults can range from mild to severe and can develop rapidly, making it important to seek medical attention as soon as possible.

Symptoms of Meningitis in Adults:

1. Headache: One of the most common symptoms of meningitis is a severe headache that is accompanied by neck pain. This headache is often described as being similar to a migraine and is usually worse in the morning.
2. Fever: A high fever is another common symptom of meningitis. This can be accompanied by chills and sweating, which can make the affected person feel very ill.
3. Nausea and vomiting: Many people with meningitis experience nausea and vomiting, which can be severe in some cases.
4. Stiff neck: A stiff neck is another common symptom of meningitis, especially in adults. This can make it difficult for the affected person to move their head and neck, and can be accompanied by pain.
5. Light sensitivity: Light sensitivity, also known as photophobia, is another common symptom of meningitis in adults. This can make it difficult for the affected person to be in bright light or to look at bright screens, such as computer monitors or televisions.
6. Confusion and disorientation: Many people with meningitis experience confusion and disorientation, which can make it difficult for them to think clearly and make decisions.
7. Fatigue and exhaustion: Fatigue and exhaustion are also common symptoms of meningitis in adults. This can make it difficult for the affected person to perform daily activities and can cause them to feel very tired.
8. Seizures: Seizures can occur in some people with meningitis, especially if the infection is caused by a bacteria. These seizures can be mild or severe, and can cause the affected person to lose consciousness or convulse.

Treatment for Meningitis in Adults:

1. Antibiotics: If the cause of the meningitis is a bacterial infection, antibiotics will be prescribed to treat the infection. These antibiotics will typically be given intravenously (into a vein) to ensure that they reach the site of the infection quickly and effectively.
2. Anti-viral medications: If the cause of the meningitis is a virus, anti-viral medications will be prescribed to help control the virus and reduce the severity of the symptoms.
3. Steroids: Steroids can also be prescribed to reduce inflammation and swelling in the brain and spinal cord. This can help to relieve pressure on the brain and spinal cord and can improve symptoms such as headache, neck pain, and light sensitivity.
4. Pain relief: Pain relief medications can be prescribed to help relieve headache, neck pain, and other symptoms associated with meningitis.
5. Supportive care: Supportive care will also be given to help manage the symptoms of meningitis. This can include things like IV fluids to prevent dehydration, and medications to control nausea and vomiting.

In conclusion, meningitis is a serious and potentially life-threatening infection that requires prompt medical attention. If you suspect that you or someone you know may have meningitis, it is important to seek medical attention as soon as possible. Treatment will typically involve antibiotics or antivirals, along with supportive care to manage the symptoms. With prompt and effective treatment, most people with meningitis will make a full recovery.