The good news is there's no research evidence to suggest regular, long-term use of modern ... standard doses of antihistamines can be safely used over extended periods of time for adults, if ...

Different medications can treat allergies, including steroids and allergy shots, but one of the first things to try is an antihistamine ... not recommended for long-term use, as they can cause ...

There are many decongestants on the market, but don't use ... antihistamine, and they are generally considered safe to take. Usually, you can take a decongestant and an antihistamine at the same time.