It is unlikely that crying could result in your sinus infection. Sinusitis is the inflammation of the nasal sinuses by viral, bacterial or fungal infection. There is collection of mucus and plugging of the sinus cavities. Treatment for sinusitis involves antibiotics, intranasal steroids, saline irrigation of the nose and decongestants. Saline nose drops and decongestants are available over-the-counter and are usually prescribed initailly with antibiotics and steriods reserved for more severe cases.
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