** Thanks for contacting with your health concern 1. going through your symptoms it is probably a sinus infection [post nasal drip] or a sore throat for which more or less treatment is same and also make sure that other causes of a sore throat mainly bacterial (Streptococcus,Tonsillitis) are ruled out. . you can take amoxicillin if the infection is mild otherwise ciprofloxacin/ azithromycin are another choices and also anti-inflammatory drugs have to be given to reduce inflammation of nasal passages so that infection can drain from sinuses. PS. It is important not to use antibiotics to treat viral illness, as they do not alter the course of viral illness but causes unnecessary side effects like nausea, vomiting, diarrhea, rashes. . Avoid dust/smoke/cold. . steam inhalation. . saline water gargles, Lozenges (Strepsils,koflet, Halls), herbal tea of ginger, lime, fenugreek. . avoid cold drinks, ice cream, fried foods, milk and dairy products, tomatoes, banana. . take more of papaya, apple, boiled and steamed vegetables, vegetable soup. . make an appointment with ENT or Otolaryngologist for further evaluation and treatment. [so that they can exclude drugs having interaction with your psychiatric medicines]