Benzoyl peroxide is a widely used topical treatment that helps reduce acne-causing bacteria and clear out clogged pores. It comes in creams, gels, and washes at various strengths depending on how sensitive the skin is. For many people, it's one of the first things tried before moving on to stronger treatments.

A blackhead is an open comedone, where trapped oil and skin cells darken once exposed to air. It shows up as a small dark dot on the skin's surface. It's generally one of the milder, earlier signs that acne is developing.

Biologic therapy for nasal polyps is an injectable medicine that targets specific immune pathways fuelling polyp growth and inflammation. It's typically considered for people whose polyps keep coming back despite other treatments, including surgery. It represents a newer, non-surgical direction in managing more stubborn cases.

A biologic response modifier is a medicine that homes in on specific parts of the immune system to reduce inflammation in psoriatic arthritis. It's usually brought in when standard treatments aren't controlling symptoms well enough. These medicines have changed the outlook for many people with more stubborn disease.

Biologic therapy uses medicines made from living cells to zero in on the specific immune pathways driving psoriasis. These are usually given by injection and reserved for moderate to severe cases that haven't responded well to other treatments. They represent one of the bigger shifts in psoriasis care over the past couple of decades.

Bronchial Dilation means the permanent widening and scarring of the airways (the core of the disease). When airways become permanently widened, they cannot clear mucus properly. This can cause frequent chest infections, coughing, and breathing problems. Recognising this change helps doctors explain symptoms and choose suitable treatment.

Bronchoscopy means a procedure where a doctor inserts a thin camera into the lungs to clean or sample mucus. This term describes an important change in the lungs or airways. Understanding it can help explain symptoms such as breathlessness, mucus build-up, or repeated infections. It also supports doctors in monitoring the condition and adjusting treatment.

Baseline means your "normal" daily state; doctors use this to judge how bad a flare-up is. This term describes an important change in the lungs or airways. Understanding it can help explain symptoms such as breathlessness, mucus build-up, or repeated infections. It also supports doctors in monitoring the condition and adjusting treatment.

Bronchodilator means a medication that "opens" or relaxes the muscles around your airways. This term describes an important change in the lungs or airways. Understanding it can help explain symptoms such as breathlessness, mucus build-up, or repeated infections. It also supports doctors in monitoring the condition and adjusting treatment.

Bullae means large, useless air pockets that form in the lungs when small air sacs break down. This term describes an important change in the lungs or airways. Understanding it can help explain symptoms such as breathlessness, mucus build-up, or repeated infections. It also supports doctors in monitoring the condition and adjusting treatment.