For eyes,I would suggest you to consult a eye surgeon. If mild, avoid unnecessary meds and just give steam inhalations for cold and cough and decongestant nasal drops for nasal blockade or increased cough on lying down. Use paracetamol for fever if required. If not improving OR accompanied by other symptoms like vomiting or loose motions or breathlessness and dullness or refusal to feed consult your paediatrician asap.