Naltrexone Rash: What to Do

Record when the rash began compared with each dose, where it appeared, whether it itches or hurts, and whether it is spreading. A drug eruption may be widespread or may include hives, while Contact Dermatitis follows exposure to an irritant or allergen. Atopic Dermatitis, Heat Rash, Intertrigo, Psoriasis, Ringworm, and Scabies can also cause redness or itch with different patterns. Other medicines, supplements, infections, and skincare products may be relevant, so the timing history is useful.

Contact the prescriber promptly for advice before changing a prescribed treatment, and provide the dose, start date, other medicines, and photographs of the rash. Do not re-challenge yourself to see what happens. Use gentle, fragrance-free products and avoid new creams until the cause is clearer. A clinician may diagnose a Drug Rash or another condition after examining the skin and reviewing the medication timeline.

Get emergency help for trouble breathing, throat or tongue swelling, faintness, rapidly spreading hives, blistering, skin peeling, painful skin, mouth or eye sores, or fever with a worsening rash. These features can signal a serious reaction and should not wait for a routine appointment. Even a milder new rash should be reported because the prescriber may need to assess the medicine promptly.

Ask whether naltrexone should be continued, which warning signs require urgent help, whether another medicine or product could be responsible, and how to record the rash if it changes.