Contact your doctor immediately if you experience severe allergic reactions, such as difficulty breathing, swelling of your face, lips, tongue, or throat, or hives. These are serious and require prompt medical attention.
Side Effects Requiring Medical Attention
Seek medical advice if you develop persistent diarrhea, severe stomach pain, or bloody stools. These could indicate a serious gut infection like *Clostridium difficile* colitis. Also, report any signs of liver problems like jaundice (yellowing of skin or eyes), dark urine, or unusual fatigue.
Persistent or worsening symptoms related to the condition you’re treating with doxycycline also warrant a doctor’s visit. If your infection doesn’t improve after several days of treatment, or if new symptoms arise, contact your physician.
Medication Interactions & Contraindications
Inform your doctor about all medications, supplements, and herbal remedies you take. Doxycycline can interact with certain drugs, potentially leading to adverse effects. Discuss any pre-existing medical conditions, particularly those affecting your liver or kidneys. Also, tell your doctor if you are pregnant, breastfeeding, or planning pregnancy, as doxycycline may not be suitable.
If you experience unusual skin sensitivity to sunlight, report this to your doctor. This could indicate a photosensitivity reaction.
