 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST] , fever, chills). Very rarely, people who are treated with or who have had contact with this medication have developed other skin cancers. Tell your doctor right away if you, or someone who has helped you apply this medication, notice any new skin lesions or unusual skin changes. Ask your doctor for details. A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing. This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist. In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch. In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.The precautions of Valchlor Topical: Before using mechlorethamine, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies </s>