It is completely normal to experience mild fever, tiredness, and a runny nose after your second Covishield dose; this shows your immune system is building protection. It is safe to continue taking your daily Telekast F (fexofenadine/montelukast) for allergies, as it does not interact negatively with paracetamol or the vaccine. Keep taking paracetamol as prescribed for the fever, stay well-hydrated, and get plenty of rest. If your fever persists beyond three to four days, or if your symptoms worsen significantly, please consult your doctor for further guidance.

It is best to avoid taking Telekast-F (which contains fexofenadine and montelukast) without consulting your obstetrician. While some of these components can be used during pregnancy, this specific combination is not typically the first choice and requires professional supervision. Since your prescribed cough syrup isn't working, please contact your doctor or OB/GYN. They can safely evaluate your cough and find a suitable, pregnancy-safe treatment to help you get some well-deserved rest.