What to use for leg pain that occurred while taking birth control pills?

First of all, it is worth consulting a family doctor. It may be necessary to visit a vascular surgeon and Doppler ultrasound of the veins of the lower extremities. Only then will it be possible to assess the possible risk of thrombosis and check whether it is safe to continue taking contraception in your case. Without expanding the diagnostics, you will not be able to assess it. If you do not have the opportunity to consult your family doctor, you can use teleadvice here: https://www.gdziepolek.pl/telekonsultacja I also attach a link to an article that may be helpful: https://www.gdziepolek.pl/artykuly/czy-bac-sie-dzialan-niepozadanych-lekow Until you consult a doctor, you can use over-the-counter gels, e.g. with heparin. I attach links to websites where you can compare the prices of this type of products in online pharmacies and order the preparation with home delivery or collection at the pharmacy: https://www.gdziepolek.pl/produkty/43890/lioton-1000-zel/apteki https://www.gdziepolek.pl/produkty/34739/heparin-hasco-forte-zel/apteki