Doxycycline, while effective, can cause several side effects. Gastrointestinal issues are common, including nausea, vomiting, and diarrhea. These usually are mild and resolve without intervention. However, persistent or severe symptoms warrant medical attention.
Sun sensitivity is another frequent side effect. Increased sun exposure should be avoided while taking doxycycline, and sunscreen with a high SPF is recommended. A sunburn can develop more easily than usual.
Oral thrush (a fungal infection of the mouth) is a possibility, particularly in individuals with existing conditions predisposing them. Yeast infections are also reported more often in women.
Less common, but still possible, side effects include headache, dizziness, and vaginal yeast infections. Rare occurrences include esophageal ulcers and serious allergic reactions such as swelling of the face, lips, or tongue. Seek immediate medical help if you experience such reactions.
Remember to inform your doctor about all medications you take, including over-the-counter drugs and supplements, before starting doxycycline to minimize potential drug interactions and complications.
