Hi.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concerns.. As per your complain it seems that you have a Chronic Sinus infection and gum pain and teeth aches and earaches can be due to it as the sinuses lies around the nose and in close proximity with upper teeth.. Mouth sores can be due to infection only as post nasal drip caused by sinus drainage can cause inflammation and mouth ulcers.. Sore spots on the scalp can be either due to hair follicle infections or Folliculitis or can be due to fungal infection on scalp.. I would suggest you to consult an Otolarynglogist and get evaluated and he can do a clinical examination along with PNS View x ray of sinuses and MRI Scan can help in diagnosis.. You can be advised to take a course of antibiotics, anti inflammatory painkillers, decongestants and saline nasal irrigation,steroid nasal sprays and steam inhalations.. For bumps on scalp you can consult a Trichologist and get evaluated and a thorough clinical evaluation and microscopic scrapings from scalp can help in diagnosis and treatment can be planned accordingly.. You can be advised antifungal shampoos, antibacterial ointments like Clindamycin and steroid lotions.. Hope this information helps.. Thanks and regards. Dr.Honey Nandwani Arora.