White bumps on the skin

Small rough bumps on the upper arms or thighs can fit [Keratosis Pilaris](/conditions/keratosis-pilaris/). Tiny firm pale cysts may be [Milia](/conditions/milia/). Bumps around hairs, especially with redness or a pustule, can reflect [Folliculitis](/conditions/folliculitis/). Clusters after heat and sweating may suggest [Heat Rash](/conditions/heat-rash/), while itch and a broader rash point toward an inflammatory cause. Less typical patterns, including flat-topped or purplish bumps, may need consideration of [Lichen Planus](/conditions/lichen-planus/). A photograph, body map, and symptom timeline can make an appointment more productive.

Keep the area cool and dry, cleanse without scrubbing, and choose loose breathable clothing when sweat or friction is involved. Avoid picking, shaving across inflamed bumps, and applying several new products at once. Use a bland moisturiser if the skin feels dry. Because the right treatment depends on the cause, a clinician may recommend an anti-itch option such as [Antihistamine Treatment](/treatments/medical-dermatology/oral-antihistamine-therapy/) or a procedure such as [Cryotherapy (Lesion Removal)](/treatments/surgical-dermatology/cryotherapy-lesion-removal/) only when the diagnosis supports it.

Arrange a medical review for bumps that persist, spread, repeatedly return, bleed, crust, or change in colour or shape. Seek prompt care for rapidly spreading redness, warmth, marked swelling, severe pain, pus with fever, or a rash involving the eyes or mouth. Sudden facial swelling with breathing or swallowing difficulty is an emergency.

Which pattern does this resemble, and what findings support that impression? Could heat, hair follicles, a product, or an inflammatory condition be contributing? Should I stop any current cream? What changes would mean I need earlier review? Is a sample, prescription, or procedure needed?