Hi thanks for contacting HCM... First treat it as simple viral respiratory infection that leading reffred headache. .. Give him benadryl like antihistaminic drug and paracetamol.... Steam inhalation done ... Turmeric powder with milk can be taken daily.... Honey with water also useful... Prophylactic antibiotic if needed taken like cefixime for five days ... More water ... Avoid excess spicy food and fried food. If no improvement investigate with.... /CBC /PS - might show malaria parasite /throat swab for influenza (oseltamivir drug useful in it) /chest x ray for bronchitis Consult physician for it. Take care