P
Palsy - Paralysis or uncontrolled movement of controlled muscles.

Paroxysm - Convulsion

Pemphigus - Skin disease of watery blisters

Pericarditis - Inflammation of the heart

Peripneumonia - Inflammation of the lungs

Peritonotis - Inflammation of abdominal area

Petechial Fever - Fever characterized by skin spotting

Phthisis - Chronic wasting away or a name for tuberculosis

Plague - An acute febrile highly infectious disease with high fatality rate

Pleurisy - Any pain the chest area with each breath

Podagra - Gout

Poliomyelistis - Polio Potter's asthma - Fibroid pthisis

Pott's disease - Tuberculosis of the spine

Puerperal Exhaustion - Death due to child birth

Puerperal Fever - Elevated temperature after giving birth to an infant

Puking Fever - Milk sickness

Putrid Fever - Diphtheria


Q
Quinsy - Tonsillitis


R
Remitting fever - Malaria

Rheumatism - Any disorder associated with pain in joints

Rickets - Disease of skeletal system

Rose cold - Hay fever or nasal symptoms of an allergy

Rotanny fever - Child's disease

Rubeola - German measles