Due to temperature changes caused by air conditioning and heating systems, many people report dry mouth as a response from the body
As seasonal allergic rhinitis is caused by the intense heat, people drink more water than usual, causing the body to react strangely and become dehydrated
Many people are allergic to tree pollen and, to relieve symptoms, they use antihistamines that can cause or worsen dry mouth
Seasonal allergic rhinitis itself has dry mouth as one of its symptoms
