For jaw swelling during a root canal, an over-the-counter anti-inflammatory medication like Ibuprofen (400 mg every 4 to 6 hours, provided you have no contraindications like stomach ulcers or asthma) is most effective. Applying a cold compress to the outside of your jaw for 15 minutes at a time will also help reduce inflammation. Please avoid self-medicating with antibiotics. Since swelling can indicate an active infection, it is crucial to contact your dentist immediately. They will determine if you need prescription-strength medications, antibiotics, or an urgent follow-up appointment.

Your symptoms, especially the white spots on your tonsils, strongly suggest tonsillitis, which can be bacterial (like strep throat) or viral. You should see a doctor for a throat swab, as bacterial infections require prescription antibiotics. For temporary symptom relief, you can take over-the-counter pain relievers like ibuprofen or acetaminophen to reduce fever and ease throat and ear pain. For nasal congestion, an oral decongestant (like pseudoephedrine) or a saline nasal spray can help. Rest, stay hydrated, and gargle with warm salt water to soothe your throat. Please consult a healthcare provider for an accurate diagnosis.

Even if there is no bone injury, your symptoms may be due to soft tissue injury or nerve irritation from the fall. Tingling in the hand often suggests nerve involvement around the shoulder or neck area. Since the symptoms are continuing for a month, it is important to consult a doctor again for further evaluation to find the exact cause and prevent long-term problems.

Severe one-sided pain behind the eye with a throbbing feeling that comes back after the painkillers wear off is most commonly due to conditions like cluster headache or migraine, though sinus infection or nerve-related pain can also cause similar symptoms. Because the pain is recurring and intense, simple medicines like ibuprofen or paracetamol may give only temporary relief and are usually not enough. For proper treatment, a doctor may prescribe specific medicines such as Sumatriptan for quick relief during attacks, and preventive medicines like Verapamil if the episodes are frequent. It is important to identify and avoid triggers like stress, lack of sleep, alcohol, or strong smells, and maintain a regular routine. You should consult a doctor, preferably a neurologist, for an accurate diagnosis, especially if the pain is severe, one-sided, associated with eye watering or nasal symptoms, or persists for weeks, as early and targeted treatment can significantly improve your condition.

For sudden, severe back pain, you can temporarily take over-the-counter NSAIDs like Ibuprofen (400 mg) or Naproxen to reduce pain and inflammation, or Acetaminophen (Paracetamol) if you cannot take NSAIDs. Apply a cold pack for 15-20 minutes to numb the area. Since the pain is severe and limits your mobility, please consult a doctor for a proper diagnosis before starting any stronger medication. Seek immediate emergency medical care if you experience 'red flag' symptoms such as numbness in your groin or legs, weakness, or loss of bowel or bladder control.

It is best to consult a doctor or physiotherapist who can assess your knee and recommend exercises to strengthen the surrounding muscles, which help support the joint and reduce pain. Rest your knee, avoid lifting heavy weights, and use ice packs or painkillers such as paracetamol or NSAIDs under medical supervision.