Croup is a situation in which the higher airways swells and gets irritating. The virus that causes the common cold is also liable for croup, and it mostly happen in the fall and early winter. It normally affects the kids who are 6 months to 3 years old but it can also affect older kids, so you have to be careful all the time. Croup typically occurs a few days after the start of a cold. Croup is infectious. As children grow older and their lungs and windpipes develop and they are less likely to get croup.
Streptococcal pharyngitis, also known as strep throat, is a contamination of the back of the throat including the tonsils by a bacteria. Strep throat is spread by respirational droplets from an infected person. It may be spread openly or by touching something that has droplets on it and then touching the mouth, nose, or eyes. Some people may carry the bacteria without symptoms. It may also be spread by skin infected with strep.
•    Cough with a barking noise. It is also called sound of a barking seal.
•    Stuffy or runny nose with a fever.
•    High-pitched or squeaking noise while breathing in.
If the airways carry on to swell, it becomes hard for a child to breathe. The child may make a high-pitched or screeching noise while breathing in — this is called stridor. A child may also breathe very fast or have retractions (when the skin between the ribs pulls in during breathing). In the most serious cases, a child may appear whitish or have a bluish color nearby the mouth due to a lack of oxygen.

•    Breathing in cold and moist air helps a lot.
•    Naturally tough on bacteria and viruses, raw honey is a holistic remedy you don’t want to be without.  In studies raw honey was found MORE effective than over-the-counter cough medicine. 
•    Clearing toxins from the body helps with all acute illnesses when tolerated.  Not only will a detox bath help your child to detoxify, but the magnesium will relax muscles to ease the cough and the steam from the bath will also help with congestion.
•    Increase the level of humidity in your home and especially the room your child is sleeping in.  You can do this by using a humidifier.

•    Pain and irritation in the throat
•    Redness of throat with white patches.
•    Nausea
If not treated properly it may lead to rheumatic fever, ear infection and problems in kidney.
•    Warm liquids are really helpful in sore throat so you should try to drink as much warm liquids like green tea, lemon tea, warm water etc. as much as you can.
•    Gargling with salt water is also helpful. 
•    To reduce the occurrence of strep throat sunflower oil is an effective preventive means.
•    Garlic which is known for its antibacterial properties is also helpful in reducing the bacterial infection.