I understand your concern about your son's adenotonsils and ear infection. The tonsils could be causing his ear pain since they are close by in the throat. To help with the pain, you can give him acetaminophen (PCM). Make sure he continues the prescribed medications, drinks plenty of fluids, gets enough rest, and eats soft, cool foods to soothe his throat. If his symptoms don’t improve or worsen, please see the doctor again for further tests.

When a situation like this arises, your nose can easily get very sensitive and even start to hurt. It can be that you may also find yourself sneezing or coughing a lot. To help with this, first, gently blow your nose to get rid of any leftover oil and then rinse your nose with cool water. 

To manage this, follow your doctor's medical advice, to treat the sinus infection, stay hydrated, try gargling and steam, manage stress, and consider a second opinion if needed.

Sinus issues are the usual culprits for stuffy or runny noses, headaches, and pressure around your eyes and nose. Nasal allergies occur when one's immune system reacts even to innocent substances like pollen or dust. The best way to manage this is by avoiding the triggers such as dust, using air filters, and taking allergy medications.

The common cold, flu, or an infection could be responsible for these. Resting, drinking plenty of fluids such as warm teas or soups, and gargling with warm salt water are the best things to do. Eating soft foods and avoiding spicy or acidic foods can also help. If it's getting worse or not getting better after a few days, it's important to let your body rest and recover.