 <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] . Do not store in the bathroom. Keep all medications away from children and pets. Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.The uses of Valchlor Topical: This medication is used on the skin to treat a certain type of cancer (cutaneous T-cell lymphoma). Mechlorethamine belongs to a class of drugs known as alkylating agents. It works by slowing or stopping the growth of cancer cells that cause the skin condition. How to use Valchlor Gel Read the Medication Guide and, if available, the Patient Information Leaflet provided by your pharmacist before you start using mechlorethamine and each time you get a refill. If you have any questions, ask your doctor or pharmacist. Use this medication as directed by your doctor, usually once a day. After taking this medication out of the refrigerator, apply it within 30 minutes, and be sure to return it to the refrigerator right after each use. Apply a small amount of medication to completely dry skin at least 4 hours before or 30 minutes after showering or washing. Let the treated area(s) </s>