A proper homoeopathic case taking needs to be done for your son.Dont give medicines without a homoeopathic doctor's suggestion by yourself,it may worsen the situation.
Next Steps
You can book an appointment with me on Practo.
Health Tips
By the time ,give him hot food,hot soups,hot dals and if there is any expectoration,ask him not to swallow it rather get it out everytime there is an urge.