Which drugs cause skin discoloration and after what ointments to avoid sun exposure?

The number of drugs (both oral and lubricating) that can cause an increased reaction to the sun and consequently also discoloration is very many and it would be extremely difficult to include a full compendium on this topic in response to the forum. Photosensitizing reactions can be caused by drugs from almost any pharmacological group - antidepressants, antihistamines, anti-infectives including antibiotics, antipsychotic, circulatory, analgesic or hormonal and preparations from St. John's wort. In the case of medicines applied to the skin, special care should be taken when applying ointments or creams with analgesic ketoprofen: https://www.gdziepolek.pl/substancje/ketoprofen Warnings are also present for drugs used in acne. As a result of these processes, discoloration that is difficult to eliminate may arise on the skin. In turn, from oral drugs, sun discoloration is characteristic of contraceptive pill therapy: https://www.gdziepolek.pl/artykuly/antykoncepcja-hormonalna Drugs in combination with sun exposure can cause a photoallergic reaction that occurs in sensitive people and photosensitizing reactions that can affect any person and resemble a sunburn on the skin subjected to sunlight. If you have doubts whether the products you use can interact with solar radiation, it is best to check it individually in the leaflets of these products or ask the pharmacist a question by giving the trade names of the preparations used.