Inform her that it may be because her infant is teething, but if it carries on for another week, come back to the pharmacy

The symptoms that Alice is presenting with would warrant immediate referral to the GP so that they can explore them further

Tell her that the formula may not be agreeing with Alice, so she should try a different standard one to see if it helps

Although it may be true that the formula might not be agreeing with Alice, the symptoms could be due to another underlying cause, so referral to the GP would be sensible

Advise her to see the GP to discuss it further, as it sounds like it might be due to cows’ milk allergy

The symptoms do indeed suggest cows’ milk allergy and Alice appears to have at least two symptoms from at least two different organ systems

Tell her to stop the formula milk and try a lactose-free formula, which can be bought in the pharmacy, to see if it helps ease the symptoms

Although the symptoms described can also be due to lactose intolerance, this is rare in children under two to three years of age and it is better to refer them to their GP so a definitive diagnosis can be made.