Sore throat remedies and treatment cures from natural ingredient include:

• Slippery Elm – Have tried Thayers Slippery Elm lozenges for a sore throat and they really helped. Odd taste, but not a bad taste. You can also find slippery elm teas which should work as well.
• Apple cider vinegar and warm water (drink or gargle)
• Hot tea with lemon and honey
• Hot drink of lemon, apple cider vinegar, cayenne, and honey
• Warm water gargle with sea salt and crushed baby aspirin
• Warm water gargle with lemon juice and salt
• Warm water gargle with cayenne
• Pickle juice
• Crushed blackcurrants added to a cup of boiling water (allow to steep for 10 minutes then drink the liquid and chew the fruit)

The following herbs have been said to be helpful for soothing the inflammed tissues of a sore throat:

Agrimony (Agrimonia eupatoria)
Anise (Pimpinella anisum)
Balloonflower (Platycodon grandiflorum)
Burnet-saxifrage (Pimpinella major)
Eucalyptus (Eucalyptus globulus)
Garlic (Allium sativum)
Ginger (Zingiber officinale)
Honeysuckle (Lonicera japonica)
Knotgrass (Polygonum aviculare)
Licorice (Glycyrrhiza glabra)
Marsh Mallow (Althaea officinalis)
Myrrh (Commiphora var)
Plantain (Plantago var)
Slippery Elm (Ulmus rubra) (as mentioned above)
Wintergreen (Gaultheria procumbens)

Also see:
Ways to Soothe a Sore Throat

If your sore throat pain doesn’t ease or if you have a fever of more than 101 degrees, tender or swollen lymph glands in your neck, severe difficulty swallowing or breathing, drooling, yellow pus in the back of the throat, and/or your sore throat is accompanied by other symptoms such as a rash, it is advised to see a physican. In general, if you have any concerns, please contact your health care provider.