vintage style items with lace decorated for a formal party

Hi! I Took my 2 year old to the dr. On Friday for a possible earache & His nose running profusely and not eating much. She said it's just a cold and possible teething. Maybe 2 year molars.. My question is is his drainage is yellow at times. Does that mean infection or can it yellow from a cold/teething? Also I've been giving him zyrtec but is there anything else I can give him a 2 Years of age for a cold? vintage style items with lace decorated for a formal party