According to Prof Fox, you should take an antihistamine in the afternoon to offset nasty symptoms in the evening.
Antihistamines are medicines often used to relieve symptoms of allergies, such as hay fever.
They come in several different forms – including tablets, capsules, liquids, syrups, creams, lotions, gels, eyedrops and nasal sprays.
Are my symptoms indicating hay fever or Covid?
Against a global pandemic, many people will be wondering whether their symptoms are the result of COVID-19.