When Is Methotrexate Treatment Recommended for Pustular Psoriasis?

Pustular psoriasis can produce tender areas of red skin covered with pus-filled bumps. It may affect a limited region such as the palms and soles or involve broader skin areas. Methotrexate changes immune activity and may be selected when a systemic medicine is needed, but the choice depends on the pattern, speed of onset, general health, prior treatment, and whether infection or another diagnosis must be excluded.

Arrange specialist review rather than starting or borrowing methotrexate. Discuss blood tests, liver and kidney health, infection risk, alcohol, other medicines, contraception, and pregnancy plans. Take the medicine only according to the prescribed schedule and attend monitoring appointments. More information is available in [Methotrexate Treatment](/treatments/medical-dermatology/methotrexate-therapy/).

Widespread pustules with fever, chills, marked weakness, dehydration, rapid skin change, or severe pain need urgent medical assessment because extensive inflammation can make someone unwell. During methotrexate treatment, report fever, unusual bruising, mouth sores, yellow skin, dark urine, or breathing symptoms promptly.

Ask whether the pustular pattern needs urgent treatment, why methotrexate is being considered, which alternatives are available, what monitoring is required, and which symptoms mean you should seek urgent help.