I've had pharyngitis off and on for years. Any time I have seasonal allergies or a cold, my throat starts to hurt and becomes swollen. My voice is the first thing to go.
I'm tired of taking medications for it, so I usually get through it with home remedies for sore throat and herbal teas and lozenges. My favorite teas are peppermint and chamomile teas with honey. I also add fresh ginger and lemon slices sometimes. I use lozenges that have a numbing effect.
One home remedy that's very good is gargling with warm salt water. I do this several times a day when I have pharyngitis. It relieves inflammation and pain and also kills bacteria.